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Native theme fidelity suite + Material 3 fidelity fixes#5274

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Native theme fidelity suite + Material 3 fidelity fixes#5274
shai-almog wants to merge 127 commits into
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native-theme-fidelity-suite

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@shai-almog

@shai-almog shai-almog commented Jun 24, 2026 •
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What

Two things, built on each other:

  1. A data-driven native-fidelity suite (scripts/fidelity-app): for every component with a native equivalent, the real native OS widget and the CN1 component under the native theme are rendered in comparable environments and scored per (component, state, appearance). CI ratchets the scores one-way (FidelityGate) -- a change can only improve fidelity, never silently regress it.
  2. The two shipped native themes driven against it: Android Material 3 (94.9% → 96.2% overall) and the iOS Modern "Liquid Glass" theme (iOS 26), including real, GPU-rendered glass materials and the animated glass effects -- the tab selection lens morph and the switch droplet thumb.

iOS 26 Liquid Glass tab selection morph

The iOS-26 selection "drop": a real magnifying lens over the glyphs -- CN1 (this PR) morphing side-by-side against the native tab bar is in ios-modern-tab-morph-fidelity.png.

Architecture (response to the glass/material review)

All eight points are addressed; the glass/material system is now a typed rendering model with explicit geometry and motion validation:

Review point Landed as
#1/#2 typed material recipes GlassRecipe (blur / chrome / pill / panel): named, bounded, measured material definitions. Themes assign a recipe per UIID (ToolbarGlassRecipe: "chrome"); Component resolves the recipe and forwards its parameters to the port. The per-parameter constant soup (ToolbarGlassSatDark, ...) is gone.
#7 morph model TabSelectionMorph: pure, unit-tested motion model (t + cells + tokens → pill rect, lens rect, magnify/aberration/tint, bar-grow). Tabs paints from the model. Same discipline for the switch: SwitchThumbDroplet.
#8 fewer morph knobs Themes pick a named motion preset (tabsMorphPreset: ios26|subtle) plus three high-level scalars (duration, tabsMorphLensIntensityPct, tabsMorphSpringPct). The 13 envelope constants were deleted; the presets are pinned by unit test.
#5 material from intent fidelity-tests.yaml declares material: normal|glass|lens per test; the comparator picks its scoring mode from that declaration (platform-resolved), not from corner/backdrop heuristics. Verified zero score drift across the full artifact set.
#4 geometry metrics The comparator now reports (and the gate ratchets) widget bbox offset, width/height ratio, center offset and a corner-radius estimate, separately from visual similarity. It immediately surfaced real gaps the overlay score blurred (FlatButton radius 44px vs native 92px; Spinner 26% taller).
#6 animation-frame validation The morphs are captured frozen at fixed progress points (0/10/25/50/75/90/100%) on device -- each frame a pure function of (theme, progress) -- then golden-diffed and motion-property-checked (MorphFrameValidator: monotonic travel, distinct frames, bounded overshoot) with a labelled frame strip per run. The same points are pinned numerically against the model in TabSelectionMorphTest / SwitchThumbDropletTest (including the t=0.90 spring overshoot).
#3 blur caching policy Documented cost model per path + implemented: the live Metal glass composes into a patch cache keyed by rect + params + a hash of the actual backdrop bytes -- stable backdrop repaints skip the transform/blur/optics; scrolling recomposes from real pixels (no stale-glass heuristics). Measured on-device with the CN1_GLASS_PROFILE build: composition ~90ms avg on backdrop change vs ~5.3ms on a cache hit (17x; 475 hits / 253 misses across a suite run). The selection lens is a pure GPU fragment shader on the frame's command buffer (no sync/readback; this is what took the morph from ~6fps to frame rate).

Framework changes (each verified against the native golden)

  • 14-year-old iOS gradient-axis bug fixed: fillLinearGradientGlobal had inverted the horizontal/vertical mapping since the original 2012 port — every on-screen linear-gradient background on iOS painted with its axis swapped (the mutable-image path was correct). Found the moment the new geometry masks made the gradient isolation tile honest: CN1 ran the blue→green ramp left-to-right where native runs top-to-bottom, invisible to the tolerant whole-tile score (94.9%). This is the validation infrastructure paying for itself.
  • Liquid Glass rendering: CSS backdrop-filter: blur() paint integration on all three ports; iOS Metal live-screen glass/blur/lens ops (cn1_fs_lens fragment shader; GPU→GPU, no readback for the lens); glass shape-masking to the component's pill/rounded border; Apple SF Symbols for iOS icons with Material fallback (FontImage.createSFOrMaterial).
  • Tabs: iOS-26 selection capsule + travelling lens morph (model-driven, spring settle), equal-width cells (tabsEqualWidthBool), M3 indicator thickness fix (float, was silently 2× too thick), opt-in full-width bottom divider.
  • Switch: iOS-26 liquid droplet thumb (stretch/squash while sliding, glass sheen), model-driven and frame-validated.
  • FloatingActionButton: honors fabDiameterMM (Material's fixed 56dp) instead of the legacy icon-derived ~71dp.
  • Checkbox/Radio: disabled box outline reads its own .disabled style (diverges from label text, as Material renders).
  • Dialog: packed-width cap on wide screens (dialogMaxWidthPercentInt) so alert bodies wrap into a card.
  • Style.letterSpacing, res format v1.13/v1.14 (gradients, filters), and the tuned native-themes/{ios-modern,android-material}/theme.css + regenerated shipped .res mirrors.

Validation infrastructure

  • ProcessScreenshots --mode fidelity (intent-driven scoring, backdrop masking, geometry block), RenderFidelityReport (PR comment: score + material + collapsed geometry tables + side-by-side cards), FidelityGate (one-way fidelity + geometry ratchet), MorphFrameValidator (frame goldens + motion properties + strips), FidelityComposite (contact sheet).
  • Isolation ladder for glass: GlassPanel{Grey,Red,Grad,Photo} (blend vs 4 backdrops), TabsGeom/TabOne (geometry over flat grey), GlassText/GlassIcon (single element over a matched capsule) -- so glass, geometry and glyph deltas are attributable.
  • The shared-backdrop mask: glass tiles composite over the same photo backdrop on both sides; the comparator masks it out so the unchanged background cannot inflate a score. Geometry masks additionally honor each tile's declared backdrop (solid/gradient/photo), so the isolation tiles report real widget bboxes.
  • The validation layer itself went through an adversarial-review round: broken/partial frame sequences cannot validate green or seed goldens, declared-vs-delivered frame sets are enforced, tile-size regressions fail the frame goldens, and a fidelity-gate regression can no longer skip the frames stage.

Native references: local capture, versioned golden sets

Native references are captured locally, never generated by CI -- CI only renders the CN1 side and compares against committed goldens. Two standalone capture apps drive REAL windows (ios-native-ref/NativeRef.swift via scripts/build-ios-native-ref.sh; android-native-ref/ via scripts/build-android-native-ref.sh), which is what makes honest pressed states possible (a held touch with the ripple/highlight settled -- 8 Android + 6 iOS pressed references are in the sets) and adds native animation videos (scripts/record-{ios,android}-native-anim.sh -> goldens/<set>-anim/: the iOS 26 tab lens morph and switch toggle, and their Material counterparts) as the human reference beside the deterministic CN1 morph frames.

Each golden set is pinned to the OS design generation it was captured on -- goldens/ios-26-metal (iOS 26 simulator; the CI job asserts a matching runtime) and goldens/android-m3 (the CI emulator profile: API 36, 160dpi) -- with its own ratchet baseline. When iOS 27 lands, the migration is phased: capture a NEW set on the new OS, add a theme variant + CI matrix row, and gate both looks side by side until the old one is deliberately retired. iOS captures are proven deterministic (68 goldens byte-identical across two runs).

Current numbers

  • Android Material 3: 48 pairs, median 95.2%, worst 91.0 (Dialog dark). All framework-fix driven; no metric softening.
  • iOS Modern (Metal, live-screen capture, verified on the iOS 26 simulator): 62 pairs, median 92.8%. Honest capture -- the suite screenshots the real Metal frame, so the glass scores measure what users see. Worst: Toolbar dark 72.4% and the dark selected tab capsule (both quantified by the new geometry metrics and tracked in COVERAGE.md).
  • Animation frames: 24 committed frame goldens (tabs 7 points × 2 appearances, switch 5 × 2), all four groups passing the motion-property validation on device; labelled frame strips land in the workflow artifacts each run.
  • Per-pair tables, side-by-side cards and the geometry table are posted by CI on this PR (the Native fidelity (...) comments).

Coverage & what's still missing

native-themes/COVERAGE.md tracks the full audit: 14 iOS + 13 Android native controls covered and measured, and the explicit backlog (segmented control, stepper, search bar, chips, bottom sheets, date/time pickers, badges, snackbar/toast, slider droplet thumb, ...) with suggested CN1 building blocks. The "How to add a component" recipe is documented there.

Developer guide

The theming chapter documents the Liquid Glass materials (recipes), the tab morph (presets + gif + knob table) and the frame-validation discipline (docs/developer-guide/Native-Themes.asciidoc).

🤖 Generated with Claude Code

shai-almog and others added 2 commits June 24, 2026 06:18
@shai-almog @claude
Native theme fidelity suite + Material 3 fidelity fixes
243ba93 
Adds a data-driven fidelity test suite (scripts/fidelity-app) that renders
each component under the native theme alongside the REAL native OS widget
(off-screen rasterized) and measures per-component visual fidelity, gated by
a one-way ratchet vs a committed baseline. Android round raises overall
Material 3 fidelity 94.9% -> 96.2% via real framework fixes (verified pixel
vs the native golden, no metric softening):

- FloatingActionButton: honor a fabDiameterMM theme constant for the Material
  56dp fixed diameter instead of the icon*11/4 (~71dp) heuristic. FAB 85->98.
- Tabs.paintAnimatedIndicator: read tabsAnimatedIndicatorThicknessMm as a
  float (an int read dropped "0.45" -> 2x-too-thick indicator).
- Tabs.paintBottomDivider: new opt-in (tabsBottomDividerBool) full-width M3
  divider painted directly (a border-bottom does not paint on the custom
  tab-row Container); colour from the TabsDivider UIID (light/dark aware).
- DefaultLookAndFeel: disabled-unchecked checkbox/radio box reads the
  *UncheckedColorUIID's own .disabled style, so the greyed box outline can
  differ from the darker disabled label text (Material renders them distinctly).

Theme (native-themes/android-material/theme.css) + recompiled shipped res.

Host tooling: ProcessScreenshots --mode fidelity, RenderFidelityReport,
FidelityGate (ratchet), cn1ss.sh helpers, run-*-fidelity-tests.sh, and the
scripts-fidelity GitHub workflow.

iOS round is blocked: rendering the native UIKit reference inside a ParparVM
native method NPEs whenever it does real UIKit work (a trivial stub delivers;
not a threading or marshaling fault). Documented in the iOS NativeWidgetFactory
impl; needs a ParparVM fix or a PeerComponent+screenshot redesign.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
ci: mark iOS fidelity job non-blocking (ParparVM native-render blocker)
f108bb2 
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog

shai-almog commented Jun 24, 2026 •
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Compared 11 screenshots: 11 matched.
✅ JavaSE simulator integration screenshots matched stored baselines.

@shai-almog @claude
ci: make build-fidelity-app.sh executable (exit 126 in CI)
ebe84de 
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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shai-almog commented Jun 24, 2026 •
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Native fidelity (Android, Material 3)

54 pairs compared -- median 95.6%, worst 91.3% (FlatButton_pressed_dark), 25th pct 94.9%, mean 95.7%.

Distribution -- >=99%: 2 | 95-99%: 37 | 90-95%: 15 | <90%: 0

Component State Appearance Material Fidelity SSIM mean delta vs base
FlatButton pressed dark normal 91.3% 0.899 3.10 n/a
Tabs normal light normal 92.3% 0.914 3.05 +0.7
Button pressed dark normal 92.6% 0.949 4.32 n/a
FlatButton normal dark normal 93.2% 0.938 2.69 +0.4
Button disabled dark normal 93.3% 0.928 2.20 -0.6
Button pressed light normal 93.3% 0.952 3.68 n/a
FlatButton normal light normal 93.7% 0.941 2.29 -0.8
FlatButton pressed light normal 93.8% 0.942 2.56 n/a
FloatingActionButton pressed light normal 94.4% 0.927 2.82 -4.7
RadioButton normal dark normal 94.5% 0.963 2.19 -0.5
RadioButton normal light normal 94.7% 0.964 1.85 -0.5
CheckBox selected dark normal 94.7% 0.950 2.60 +0.6
RadioButton selected dark normal 94.8% 0.963 2.42 -0.8
CheckBox normal dark normal 94.9% 0.952 2.69 +0.8
Button normal dark normal 94.9% 0.949 3.16 -3.5
CheckBox normal light normal 95.0% 0.953 2.30 +0.3
Toolbar normal dark normal 95.1% 0.906 1.60 +2.9
RaisedButton pressed dark normal 95.2% 0.950 2.39 n/a
CheckBox disabled dark normal 95.2% 0.954 1.47 -1.4
CheckBox disabled light normal 95.2% 0.956 1.34 -1.4
Tabs normal dark normal 95.2% 0.913 3.65 -4.2
RadioButton disabled dark normal 95.3% 0.963 1.18 -1.8
RadioButton selected light normal 95.3% 0.964 1.84 -0.8
CheckBox selected light normal 95.4% 0.952 2.06 -0.1
Switch selected light normal 95.4% 0.966 1.59 -2.2
Switch selected dark normal 95.5% 0.966 1.86 -1.9
RadioButton disabled light normal 95.5% 0.966 1.08 -1.7
Switch disabled dark normal 95.6% 0.961 0.85 +2.0
Dialog normal light normal 95.7% 0.930 2.30 +1.7
RaisedButton pressed light normal 95.8% 0.958 2.16 n/a
Button normal light normal 95.8% 0.953 2.46 -2.8
Dialog normal dark normal 95.8% 0.932 2.30 +4.7
Switch normal light normal 96.0% 0.961 1.45 +1.9
FloatingActionButton normal light normal 96.1% 0.937 1.14 -3.0
FloatingActionButton pressed dark normal 96.2% 0.951 2.45 -2.8
Switch normal dark normal 96.2% 0.962 1.39 +4.8
TextField disabled dark normal 96.2% 0.965 0.76 +1.1
RaisedButton normal dark normal 96.4% 0.952 1.78 -2.3
Switch disabled light normal 96.4% 0.970 0.61 +5.3
Button disabled light normal 96.8% 0.960 1.06 -1.2
ProgressBar normal dark normal 96.9% 0.967 2.03 -3.1
RaisedButton disabled dark normal 97.0% 0.955 0.89 -1.7
FloatingActionButton normal dark normal 97.1% 0.952 1.43 -1.9
ProgressBar normal light normal 97.3% 0.974 1.53 -2.7
RaisedButton disabled light normal 97.3% 0.961 0.79 -1.5
TextField disabled light normal 97.3% 0.965 0.79 -0.9
RaisedButton normal light normal 97.3% 0.961 1.40 -1.3
TextField normal dark normal 97.6% 0.958 1.83 +2.2
TextField normal light normal 97.6% 0.958 1.63 +2.0
Slider normal dark normal 98.4% 0.990 0.87 +1.3
Toolbar normal light normal 98.7% 0.974 1.28 +2.2
Slider normal light normal 99.0% 0.991 0.47 -0.8
Slider disabled dark normal 99.6% 0.993 0.22 -0.2
Slider disabled light normal 99.6% 0.993 0.18 -0.2
Geometry vs native (bbox offset / size ratio / center offset / corner radius) -- gated separately from the visual score
Component State Appearance bbox dx,dy (px) w ratio h ratio center off (px) radius native->cn1 (px)
FloatingActionButton pressed light +0,+0 0.929 0.881 4.0 -
FloatingActionButton normal light +0,+0 0.946 0.912 2.9 -
Button pressed dark +0,+0 0.947 0.975 2.6 -
Button disabled dark +0,+0 0.947 0.975 2.6 -
Button pressed light +0,+0 0.947 0.975 2.6 -
Button normal dark +0,+0 0.947 0.975 2.6 -
RaisedButton pressed dark +0,+0 0.945 0.975 2.6 -
RaisedButton pressed light +0,+0 0.945 0.975 2.6 -
Button normal light +0,+0 0.947 0.975 2.6 -
RaisedButton normal dark +0,+0 0.945 0.975 2.6 -
Button disabled light +0,+0 0.947 0.975 2.6 -
RaisedButton disabled dark +0,+0 0.945 0.975 2.6 -
RaisedButton disabled light +0,+0 0.945 0.975 2.6 -
RaisedButton normal light +0,+0 0.945 0.975 2.6 -
RadioButton normal dark +1,+1 1.029 1.000 2.2 -
RadioButton normal light +1,+1 1.029 1.000 2.2 -
RadioButton selected dark +1,+1 1.029 1.000 2.2 -
RadioButton disabled dark +1,+1 1.029 1.000 2.2 -
RadioButton selected light +1,+1 1.029 1.000 2.2 -
Switch selected light +0,+0 1.080 1.063 2.2 -
RadioButton disabled light +1,+1 1.029 1.000 2.2 -
CheckBox selected dark +1,+1 1.013 1.000 1.8 -
CheckBox normal dark +1,+1 1.013 1.000 1.8 -
CheckBox normal light +1,+1 1.013 1.000 1.8 -
CheckBox disabled dark +1,+1 1.013 1.000 1.8 -
CheckBox disabled light +1,+1 1.013 1.000 1.8 -
CheckBox selected light +1,+1 1.013 1.000 1.8 -
Switch selected dark +0,+0 1.060 1.031 1.6 -
Switch disabled dark +0,-1 1.060 1.031 1.6 -
Dialog normal light +0,+0 1.007 0.982 1.6 -
Dialog normal dark +0,+0 1.007 0.982 1.6 -
Switch normal light +0,-1 1.060 1.031 1.6 -
Switch normal dark +0,-1 1.060 1.031 1.6 -
Switch disabled light +0,-1 1.060 1.031 1.6 -
FloatingActionButton pressed dark +0,+0 0.963 0.963 1.4 -
FloatingActionButton normal dark +0,+0 0.963 0.963 1.4 -
Toolbar normal light -1,+1 1.000 1.000 1.4 -
FlatButton pressed dark +0,+0 0.977 0.975 1.1 -
FlatButton normal dark +0,+0 0.977 0.975 1.1 -
FlatButton normal light +0,+0 0.977 0.975 1.1 -
FlatButton pressed light +0,+0 0.977 0.975 1.1 -
TextField normal dark +0,+0 1.015 1.036 1.1 -
TextField normal light +0,+0 1.015 1.036 1.1 -
Toolbar normal dark +0,+0 1.000 1.032 1.0 -
ProgressBar normal dark +0,+0 1.000 1.500 1.0 -
ProgressBar normal light +0,+0 1.000 1.500 1.0 -
TextField disabled dark +0,+0 1.015 1.018 0.7 -
TextField disabled light +0,+0 1.015 1.018 0.7 -
Tabs normal light +0,+1 1.000 0.984 0.5 -
Slider normal dark +1,+0 0.996 1.000 0.5 -
Slider normal light +1,+0 0.996 1.000 0.5 -
Tabs normal dark +0,+0 1.000 1.000 0.0 -
Slider disabled dark +0,+0 1.000 1.000 0.0 -
Slider disabled light +0,+0 1.000 1.000 0.0 -

Side-by-side comparisons (worst first)

  • FlatButton_pressed_dark -- 91.25% fidelity (SSIM 0.8985) (no baseline)

    native FlatButton_pressed_dark cn1 FlatButton_pressed_dark
    Left: native widget. Right: Codename One render.

  • Tabs_normal_light -- 92.28% fidelity (SSIM 0.9140) (+0.74 vs baseline)

    native Tabs_normal_light cn1 Tabs_normal_light
    Left: native widget. Right: Codename One render.

  • Button_pressed_dark -- 92.61% fidelity (SSIM 0.9485) (no baseline)

    native Button_pressed_dark cn1 Button_pressed_dark
    Left: native widget. Right: Codename One render.

  • FlatButton_normal_dark -- 93.24% fidelity (SSIM 0.9381) (+0.39 vs baseline)

    native FlatButton_normal_dark cn1 FlatButton_normal_dark
    Left: native widget. Right: Codename One render.

  • Button_disabled_dark -- 93.26% fidelity (SSIM 0.9278) (-0.58 vs baseline)

    native Button_disabled_dark cn1 Button_disabled_dark
    Left: native widget. Right: Codename One render.

  • Button_pressed_light -- 93.34% fidelity (SSIM 0.9521) (no baseline)

    native Button_pressed_light cn1 Button_pressed_light
    Left: native widget. Right: Codename One render.

  • FlatButton_normal_light -- 93.72% fidelity (SSIM 0.9410) (-0.77 vs baseline)

    native FlatButton_normal_light cn1 FlatButton_normal_light
    Left: native widget. Right: Codename One render.

  • FlatButton_pressed_light -- 93.77% fidelity (SSIM 0.9424) (no baseline)

    native FlatButton_pressed_light cn1 FlatButton_pressed_light
    Left: native widget. Right: Codename One render.

  • FloatingActionButton_pressed_light -- 94.44% fidelity (SSIM 0.9273) (-4.68 vs baseline)

    native FloatingActionButton_pressed_light cn1 FloatingActionButton_pressed_light
    Left: native widget. Right: Codename One render.

  • RadioButton_normal_dark -- 94.46% fidelity (SSIM 0.9630) (-0.48 vs baseline)

    native RadioButton_normal_dark cn1 RadioButton_normal_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_normal_light -- 94.69% fidelity (SSIM 0.9643) (-0.46 vs baseline)

    native RadioButton_normal_light cn1 RadioButton_normal_light
    Left: native widget. Right: Codename One render.

  • CheckBox_selected_dark -- 94.71% fidelity (SSIM 0.9502) (+0.58 vs baseline)

    native CheckBox_selected_dark cn1 CheckBox_selected_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_selected_dark -- 94.79% fidelity (SSIM 0.9630) (-0.77 vs baseline)

    native RadioButton_selected_dark cn1 RadioButton_selected_dark
    Left: native widget. Right: Codename One render.

  • CheckBox_normal_dark -- 94.93% fidelity (SSIM 0.9516) (+0.80 vs baseline)

    native CheckBox_normal_dark cn1 CheckBox_normal_dark
    Left: native widget. Right: Codename One render.

  • Button_normal_dark -- 94.94% fidelity (SSIM 0.9491) (-3.54 vs baseline)

    native Button_normal_dark cn1 Button_normal_dark
    Left: native widget. Right: Codename One render.

  • CheckBox_normal_light -- 95.03% fidelity (SSIM 0.9531) (+0.31 vs baseline)

    native CheckBox_normal_light cn1 CheckBox_normal_light
    Left: native widget. Right: Codename One render.

  • Toolbar_normal_dark -- 95.07% fidelity (SSIM 0.9059) (+2.89 vs baseline)

    native Toolbar_normal_dark cn1 Toolbar_normal_dark
    Left: native widget. Right: Codename One render.

  • RaisedButton_pressed_dark -- 95.19% fidelity (SSIM 0.9501) (no baseline)

    native RaisedButton_pressed_dark cn1 RaisedButton_pressed_dark
    Left: native widget. Right: Codename One render.

  • CheckBox_disabled_dark -- 95.20% fidelity (SSIM 0.9538) (-1.43 vs baseline)

    native CheckBox_disabled_dark cn1 CheckBox_disabled_dark
    Left: native widget. Right: Codename One render.

  • CheckBox_disabled_light -- 95.21% fidelity (SSIM 0.9562) (-1.39 vs baseline)

    native CheckBox_disabled_light cn1 CheckBox_disabled_light
    Left: native widget. Right: Codename One render.

  • Tabs_normal_dark -- 95.23% fidelity (SSIM 0.9125) (-4.20 vs baseline)

    native Tabs_normal_dark cn1 Tabs_normal_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_disabled_dark -- 95.29% fidelity (SSIM 0.9630) (-1.75 vs baseline)

    native RadioButton_disabled_dark cn1 RadioButton_disabled_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_selected_light -- 95.33% fidelity (SSIM 0.9642) (-0.80 vs baseline)

    native RadioButton_selected_light cn1 RadioButton_selected_light
    Left: native widget. Right: Codename One render.

  • CheckBox_selected_light -- 95.37% fidelity (SSIM 0.9524) (-0.11 vs baseline)

    native CheckBox_selected_light cn1 CheckBox_selected_light
    Left: native widget. Right: Codename One render.

  • Switch_selected_light -- 95.37% fidelity (SSIM 0.9658) (-2.16 vs baseline)

    native Switch_selected_light cn1 Switch_selected_light
    Left: native widget. Right: Codename One render.

  • Switch_selected_dark -- 95.45% fidelity (SSIM 0.9656) (-1.92 vs baseline)

    native Switch_selected_dark cn1 Switch_selected_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_disabled_light -- 95.46% fidelity (SSIM 0.9657) (-1.66 vs baseline)

    native RadioButton_disabled_light cn1 RadioButton_disabled_light
    Left: native widget. Right: Codename One render.

  • Switch_disabled_dark -- 95.57% fidelity (SSIM 0.9613) (+2.02 vs baseline)

    native Switch_disabled_dark cn1 Switch_disabled_dark
    Left: native widget. Right: Codename One render.

  • Dialog_normal_light -- 95.65% fidelity (SSIM 0.9300) (+1.72 vs baseline)

    native Dialog_normal_light cn1 Dialog_normal_light
    Left: native widget. Right: Codename One render.

  • RaisedButton_pressed_light -- 95.78% fidelity (SSIM 0.9578) (no baseline)

    native RaisedButton_pressed_light cn1 RaisedButton_pressed_light
    Left: native widget. Right: Codename One render.

  • Button_normal_light -- 95.79% fidelity (SSIM 0.9528) (-2.75 vs baseline)

    native Button_normal_light cn1 Button_normal_light
    Left: native widget. Right: Codename One render.

  • Dialog_normal_dark -- 95.79% fidelity (SSIM 0.9322) (+4.74 vs baseline)

    native Dialog_normal_dark cn1 Dialog_normal_dark
    Left: native widget. Right: Codename One render.

  • Switch_normal_light -- 95.97% fidelity (SSIM 0.9612) (+1.87 vs baseline)

    native Switch_normal_light cn1 Switch_normal_light
    Left: native widget. Right: Codename One render.

  • FloatingActionButton_normal_light -- 96.09% fidelity (SSIM 0.9367) (-3.03 vs baseline)

    native FloatingActionButton_normal_light cn1 FloatingActionButton_normal_light
    Left: native widget. Right: Codename One render.

  • FloatingActionButton_pressed_dark -- 96.16% fidelity (SSIM 0.9513) (-2.84 vs baseline)

    native FloatingActionButton_pressed_dark cn1 FloatingActionButton_pressed_dark
    Left: native widget. Right: Codename One render.

  • Switch_normal_dark -- 96.17% fidelity (SSIM 0.9616) (+4.75 vs baseline)

    native Switch_normal_dark cn1 Switch_normal_dark
    Left: native widget. Right: Codename One render.

  • TextField_disabled_dark -- 96.21% fidelity (SSIM 0.9648) (+1.13 vs baseline)

    native TextField_disabled_dark cn1 TextField_disabled_dark
    Left: native widget. Right: Codename One render.

  • RaisedButton_normal_dark -- 96.41% fidelity (SSIM 0.9516) (-2.26 vs baseline)

    native RaisedButton_normal_dark cn1 RaisedButton_normal_dark
    Left: native widget. Right: Codename One render.

  • Switch_disabled_light -- 96.43% fidelity (SSIM 0.9698) (+5.33 vs baseline)

    native Switch_disabled_light cn1 Switch_disabled_light
    Left: native widget. Right: Codename One render.

  • Button_disabled_light -- 96.80% fidelity (SSIM 0.9596) (-1.20 vs baseline)

    native Button_disabled_light cn1 Button_disabled_light
    Left: native widget. Right: Codename One render.

  • ProgressBar_normal_dark -- 96.91% fidelity (SSIM 0.9669) (-3.09 vs baseline)

    native ProgressBar_normal_dark cn1 ProgressBar_normal_dark
    Left: native widget. Right: Codename One render.

  • RaisedButton_disabled_dark -- 97.02% fidelity (SSIM 0.9549) (-1.67 vs baseline)

    native RaisedButton_disabled_dark cn1 RaisedButton_disabled_dark
    Left: native widget. Right: Codename One render.

  • FloatingActionButton_normal_dark -- 97.07% fidelity (SSIM 0.9521) (-1.93 vs baseline)

    native FloatingActionButton_normal_dark cn1 FloatingActionButton_normal_dark
    Left: native widget. Right: Codename One render.

  • ProgressBar_normal_light -- 97.26% fidelity (SSIM 0.9739) (-2.74 vs baseline)

    native ProgressBar_normal_light cn1 ProgressBar_normal_light
    Left: native widget. Right: Codename One render.

  • RaisedButton_disabled_light -- 97.26% fidelity (SSIM 0.9611) (-1.49 vs baseline)

    native RaisedButton_disabled_light cn1 RaisedButton_disabled_light
    Left: native widget. Right: Codename One render.

  • TextField_disabled_light -- 97.29% fidelity (SSIM 0.9649) (-0.91 vs baseline)

    native TextField_disabled_light cn1 TextField_disabled_light
    Left: native widget. Right: Codename One render.

  • RaisedButton_normal_light -- 97.32% fidelity (SSIM 0.9613) (-1.28 vs baseline)

    native RaisedButton_normal_light cn1 RaisedButton_normal_light
    Left: native widget. Right: Codename One render.

  • TextField_normal_dark -- 97.61% fidelity (SSIM 0.9583) (+2.18 vs baseline)

    native TextField_normal_dark cn1 TextField_normal_dark
    Left: native widget. Right: Codename One render.

  • TextField_normal_light -- 97.62% fidelity (SSIM 0.9582) (+1.98 vs baseline)

    native TextField_normal_light cn1 TextField_normal_light
    Left: native widget. Right: Codename One render.

  • Slider_normal_dark -- 98.39% fidelity (SSIM 0.9900) (+1.31 vs baseline)

    native Slider_normal_dark cn1 Slider_normal_dark
    Left: native widget. Right: Codename One render.

  • Toolbar_normal_light -- 98.69% fidelity (SSIM 0.9739) (+2.24 vs baseline)

    native Toolbar_normal_light cn1 Toolbar_normal_light
    Left: native widget. Right: Codename One render.

  • Slider_normal_light -- 98.95% fidelity (SSIM 0.9908) (-0.85 vs baseline)

    native Slider_normal_light cn1 Slider_normal_light
    Left: native widget. Right: Codename One render.

  • Slider_disabled_dark -- 99.56% fidelity (SSIM 0.9927) (-0.23 vs baseline)

    native Slider_disabled_dark cn1 Slider_disabled_dark
    Left: native widget. Right: Codename One render.

  • Slider_disabled_light -- 99.59% fidelity (SSIM 0.9932) (-0.21 vs baseline)

    native Slider_disabled_light cn1 Slider_disabled_light
    Left: native widget. Right: Codename One render.

@shai-almog

shai-almog commented Jun 24, 2026 •
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Compared 142 screenshots: 142 matched.

Native Android coverage

  • 📊 Line coverage: 9.95% (10036/100862 lines covered) [HTML preview] (artifact android-coverage-report, jacocoAndroidReport/html/index.html)
    • Other counters: instruction 8.79% (49384/561559), branch 4.33% (2213/51126), complexity 4.37% (2365/54175), method 6.63% (1867/28151), class 10.63% (425/3999)
    • Lowest covered classes
      • kotlin.collections.kotlin.collections.ArraysKt___ArraysKt – 0.00% (0/6327 lines covered)
      • kotlin.collections.unsigned.kotlin.collections.unsigned.UArraysKt___UArraysKt – 0.00% (0/2384 lines covered)
      • org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.ClassReader – 0.00% (0/1519 lines covered)
      • kotlin.collections.kotlin.collections.CollectionsKt___CollectionsKt – 0.00% (0/1148 lines covered)
      • org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.MethodWriter – 0.00% (0/923 lines covered)
      • kotlin.sequences.kotlin.sequences.SequencesKt___SequencesKt – 0.00% (0/730 lines covered)
      • com.google.common.cache.com.google.common.cache.LocalCache$Segment – 0.00% (0/726 lines covered)
      • kotlin.text.kotlin.text.StringsKt___StringsKt – 0.00% (0/623 lines covered)
      • org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.Frame – 0.00% (0/564 lines covered)
      • kotlin.collections.kotlin.collections.ArraysKt___ArraysJvmKt – 0.00% (0/495 lines covered)

✅ Native Android screenshot tests passed.

Native Android coverage

  • 📊 Line coverage: 9.95% (10036/100862 lines covered) [HTML preview] (artifact android-coverage-report, jacocoAndroidReport/html/index.html)
    • Other counters: instruction 8.79% (49384/561559), branch 4.33% (2213/51126), complexity 4.37% (2365/54175), method 6.63% (1867/28151), class 10.63% (425/3999)
    • Lowest covered classes
      • kotlin.collections.kotlin.collections.ArraysKt___ArraysKt – 0.00% (0/6327 lines covered)
      • kotlin.collections.unsigned.kotlin.collections.unsigned.UArraysKt___UArraysKt – 0.00% (0/2384 lines covered)
      • org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.ClassReader – 0.00% (0/1519 lines covered)
      • kotlin.collections.kotlin.collections.CollectionsKt___CollectionsKt – 0.00% (0/1148 lines covered)
      • org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.MethodWriter – 0.00% (0/923 lines covered)
      • kotlin.sequences.kotlin.sequences.SequencesKt___SequencesKt – 0.00% (0/730 lines covered)
      • com.google.common.cache.com.google.common.cache.LocalCache$Segment – 0.00% (0/726 lines covered)
      • kotlin.text.kotlin.text.StringsKt___StringsKt – 0.00% (0/623 lines covered)
      • org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.Frame – 0.00% (0/564 lines covered)
      • kotlin.collections.kotlin.collections.ArraysKt___ArraysJvmKt – 0.00% (0/495 lines covered)

Benchmark Results

Detailed Performance Metrics

Metric Duration
SIMD kernel backend scalar fallback (no native SIMD)
SIMD int-add (64K x300) java 199ms / native 92ms = 2.1x speedup
SIMD float-mul (64K x300) java 117ms / native 141ms = 0.8x speedup
SIMD kernel correctness PASS (native result == scalar reference)
Base64 payload size 8192 bytes
Base64 benchmark iterations 6000
Base64 SIMD byte path gated to scalar (CPU autovectorizes scalar; explicit SIMD not beneficial here)
Base64 CN1 encode 234.000 ms
Base64 CN1 decode 162.000 ms
Base64 native encode 986.000 ms
Base64 encode ratio (CN1/native) 0.237x (76.3% faster)
Base64 native decode 770.000 ms
Base64 decode ratio (CN1/native) 0.210x (79.0% faster)
Image encode benchmark status skipped (SIMD unsupported)

@shai-almog @claude
ci: fix build-test (ASCII), update javase goldens, seed fidelity goldens
993dc7e 
- Switch.java: replace a non-ASCII U+2248 with ~ (Android port javac uses
  US-ASCII encoding and failed on it).
- scripts/javase/screenshots: refresh the 7 simulator goldens that shifted with
  the framework/theme changes (rendered on CI Linux to match the test env).
- scripts-fidelity.yml: TEMPORARY seed -- run the Android fidelity suite with
  FIDELITY_UPDATE_GOLDENS=1 + FIDELITY_UPDATE_BASELINE=1 so the native goldens
  and baseline are regenerated on CI's emulator density (the committed ones were
  rendered on a different local emulator, so 50/54 pairs "could not be compared").
  Reverted in a follow-up once the CI-density artifacts are committed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog

shai-almog commented Jun 24, 2026 •
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Apple Watch (watchOS / Core Graphics)

Compared 216 screenshots: 212 matched, 4 updated.

  • ButtonTheme_dark — updated screenshot. Screenshot differs (416x496 px, bit depth 8).

    ButtonTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ButtonTheme_dark.png in workflow artifacts.

  • TabsTheme_light — updated screenshot. Screenshot differs (416x496 px, bit depth 8).

    TabsTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as TabsTheme_light.png in workflow artifacts.

  • ToolbarTheme_dark — updated screenshot. Screenshot differs (416x496 px, bit depth 8).

    ToolbarTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ToolbarTheme_dark.png in workflow artifacts.

  • ToolbarTheme_light — updated screenshot. Screenshot differs (416x496 px, bit depth 8).

    ToolbarTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ToolbarTheme_light.png in workflow artifacts.

@shai-almog @claude
ci: commit CI-density Android goldens + baseline, drop seed flags
1c0a57d 
The native goldens + ratchet baseline are now the ones the seed run regenerated
on CI's own emulator (e.g. Tabs 377x100 vs the local 1039x277), so the fidelity
gate compares like-for-like instead of failing 50/54 pairs on size mismatch.
Removes the temporary FIDELITY_UPDATE_* seed so the job is a real one-way ratchet
again. CI baseline overall fidelity: 96.2%.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog

shai-almog commented Jun 24, 2026 •
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Apple TV (tvOS / Metal)

Compared 138 screenshots: 106 matched, 32 updated.

  • ButtonTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ButtonTheme_dark
    Preview info: JPEG preview quality 60; JPEG preview quality 60; downscaled to 1344x756.
    Full-resolution PNG saved as ButtonTheme_dark.png in workflow artifacts.

  • ButtonTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ButtonTheme_light
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 1920x1080.
    Full-resolution PNG saved as ButtonTheme_light.png in workflow artifacts.

  • ChatInput_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ChatInput_dark
    Preview info: JPEG preview quality 40; JPEG preview quality 40; downscaled to 1920x1080.
    Full-resolution PNG saved as ChatInput_dark.png in workflow artifacts.

  • ChatInput_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ChatInput_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 1920x1080.
    Full-resolution PNG saved as ChatInput_light.png in workflow artifacts.

  • ChatView_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ChatView_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 1920x1080.
    Full-resolution PNG saved as ChatView_dark.png in workflow artifacts.

  • ChatView_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ChatView_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1920x1080.
    Full-resolution PNG saved as ChatView_light.png in workflow artifacts.

  • CheckBoxRadioTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    CheckBoxRadioTheme_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 1920x1080.
    Full-resolution PNG saved as CheckBoxRadioTheme_dark.png in workflow artifacts.

  • CheckBoxRadioTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    CheckBoxRadioTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1920x1080.
    Full-resolution PNG saved as CheckBoxRadioTheme_light.png in workflow artifacts.

  • DialogTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    DialogTheme_dark
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1344x756.
    Full-resolution PNG saved as DialogTheme_dark.png in workflow artifacts.

  • DialogTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    DialogTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1344x756.
    Full-resolution PNG saved as DialogTheme_light.png in workflow artifacts.

  • FloatingActionButtonTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    FloatingActionButtonTheme_dark
    Preview info: JPEG preview quality 60; JPEG preview quality 60; downscaled to 1920x1080.
    Full-resolution PNG saved as FloatingActionButtonTheme_dark.png in workflow artifacts.

  • FloatingActionButtonTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    FloatingActionButtonTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 1920x1080.
    Full-resolution PNG saved as FloatingActionButtonTheme_light.png in workflow artifacts.

  • ListTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ListTheme_dark
    Preview info: JPEG preview quality 30; JPEG preview quality 30; downscaled to 1920x1080.
    Full-resolution PNG saved as ListTheme_dark.png in workflow artifacts.

  • ListTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ListTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 1920x1080.
    Full-resolution PNG saved as ListTheme_light.png in workflow artifacts.

  • MultiButtonTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    MultiButtonTheme_dark
    Preview info: JPEG preview quality 50; JPEG preview quality 50; downscaled to 1344x756.
    Full-resolution PNG saved as MultiButtonTheme_dark.png in workflow artifacts.

  • MultiButtonTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    MultiButtonTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1920x1080.
    Full-resolution PNG saved as MultiButtonTheme_light.png in workflow artifacts.

  • PaletteOverrideTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    PaletteOverrideTheme_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 1920x1080.
    Full-resolution PNG saved as PaletteOverrideTheme_dark.png in workflow artifacts.

  • PaletteOverrideTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    PaletteOverrideTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1920x1080.
    Full-resolution PNG saved as PaletteOverrideTheme_light.png in workflow artifacts.

  • PickerTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    PickerTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 1920x1080.
    Full-resolution PNG saved as PickerTheme_dark.png in workflow artifacts.

  • PickerTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    PickerTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 1920x1080.
    Full-resolution PNG saved as PickerTheme_light.png in workflow artifacts.

  • ShowcaseTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ShowcaseTheme_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 1920x1080.
    Full-resolution PNG saved as ShowcaseTheme_dark.png in workflow artifacts.

  • ShowcaseTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ShowcaseTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1920x1080.
    Full-resolution PNG saved as ShowcaseTheme_light.png in workflow artifacts.

  • SpanLabelTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    SpanLabelTheme_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 1920x1080.
    Full-resolution PNG saved as SpanLabelTheme_dark.png in workflow artifacts.

  • SpanLabelTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    SpanLabelTheme_light
    Preview info: JPEG preview quality 30; JPEG preview quality 30; downscaled to 1920x1080.
    Full-resolution PNG saved as SpanLabelTheme_light.png in workflow artifacts.

  • SwitchTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    SwitchTheme_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 1920x1080.
    Full-resolution PNG saved as SwitchTheme_dark.png in workflow artifacts.

  • SwitchTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    SwitchTheme_light
    Preview info: JPEG preview quality 40; JPEG preview quality 40; downscaled to 1920x1080.
    Full-resolution PNG saved as SwitchTheme_light.png in workflow artifacts.

  • TabsTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    TabsTheme_dark
    Preview info: JPEG preview quality 30; JPEG preview quality 30; downscaled to 1344x756.
    Full-resolution PNG saved as TabsTheme_dark.png in workflow artifacts.

  • TabsTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    TabsTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 1344x756.
    Full-resolution PNG saved as TabsTheme_light.png in workflow artifacts.

  • TextFieldTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    TextFieldTheme_dark
    Preview info: JPEG preview quality 30; JPEG preview quality 30; downscaled to 1920x1080.
    Full-resolution PNG saved as TextFieldTheme_dark.png in workflow artifacts.

  • TextFieldTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    TextFieldTheme_light
    Preview info: JPEG preview quality 60; JPEG preview quality 60; downscaled to 1920x1080.
    Full-resolution PNG saved as TextFieldTheme_light.png in workflow artifacts.

  • ToolbarTheme_dark — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ToolbarTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 1920x1080.
    Full-resolution PNG saved as ToolbarTheme_dark.png in workflow artifacts.

  • ToolbarTheme_light — updated screenshot. Screenshot differs (3840x2160 px, bit depth 8).

    ToolbarTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 1920x1080.
    Full-resolution PNG saved as ToolbarTheme_light.png in workflow artifacts.

@shai-almog

shai-almog commented Jun 24, 2026 •
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iOS screenshot updates

Compared 137 screenshots: 133 matched, 4 updated.

  • ButtonTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ButtonTheme_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 825x1789.
    Full-resolution PNG saved as ButtonTheme_dark.png in workflow artifacts.

  • TabsTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    TabsTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as TabsTheme_light.png in workflow artifacts.

  • ToolbarTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ToolbarTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ToolbarTheme_dark.png in workflow artifacts.

  • ToolbarTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ToolbarTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ToolbarTheme_light.png in workflow artifacts.

Benchmark Results

  • VM Translation Time: 0 seconds
  • Compilation Time: 282 seconds

Build and Run Timing

Metric Duration
Simulator Boot 95000 ms
Simulator Boot (Run) 1000 ms
App Install 14000 ms
App Launch 2000 ms
Test Execution 572000 ms

Detailed Performance Metrics

Metric Duration
SIMD kernel backend SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300) java 82ms / native 6ms = 13.6x speedup
SIMD float-mul (64K x300) java 70ms / native 7ms = 10.0x speedup
SIMD kernel correctness PASS (native result == scalar reference)
Base64 payload size 8192 bytes
Base64 benchmark iterations 6000
Base64 SIMD byte path active (NEON-accelerated)
Base64 CN1 encode 1004.000 ms
Base64 CN1 decode 463.000 ms
Base64 native encode 1318.000 ms
Base64 encode ratio (CN1/native) 0.762x (23.8% faster)
Base64 native decode 1231.000 ms
Base64 decode ratio (CN1/native) 0.376x (62.4% faster)
Base64 SIMD encode 81.000 ms
Base64 encode ratio (SIMD/CN1) 0.081x (91.9% faster)
Base64 SIMD decode 169.000 ms
Base64 decode ratio (SIMD/CN1) 0.365x (63.5% faster)
Base64 encode ratio (SIMD/native) 0.061x (93.9% faster)
Base64 decode ratio (SIMD/native) 0.137x (86.3% faster)
Image encode benchmark iterations 100
Image createMask (SIMD off) 113.000 ms
Image createMask (SIMD on) 8.000 ms
Image createMask ratio (SIMD on/off) 0.071x (92.9% faster)
Image applyMask (SIMD off) 342.000 ms
Image applyMask (SIMD on) 79.000 ms
Image applyMask ratio (SIMD on/off) 0.231x (76.9% faster)
Image modifyAlpha (SIMD off) 294.000 ms
Image modifyAlpha (SIMD on) 187.000 ms
Image modifyAlpha ratio (SIMD on/off) 0.636x (36.4% faster)
Image modifyAlpha removeColor (SIMD off) 149.000 ms
Image modifyAlpha removeColor (SIMD on) 257.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off) 1.725x (72.5% slower)

@shai-almog

shai-almog commented Jun 24, 2026 •
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Compared 133 screenshots: 133 matched.
✅ JavaScript-port screenshot tests passed.

@shai-almog

shai-almog commented Jun 24, 2026 •
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Mac native screenshot updates

Compared 140 screenshots: 108 matched, 32 updated.

  • ButtonTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ButtonTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ButtonTheme_dark.png in workflow artifacts.

  • ButtonTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ButtonTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ButtonTheme_light.png in workflow artifacts.

  • ChatInput_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ChatInput_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ChatInput_dark.png in workflow artifacts.

  • ChatInput_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ChatInput_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ChatInput_light.png in workflow artifacts.

  • ChatView_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ChatView_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ChatView_dark.png in workflow artifacts.

  • ChatView_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ChatView_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ChatView_light.png in workflow artifacts.

  • CheckBoxRadioTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    CheckBoxRadioTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as CheckBoxRadioTheme_dark.png in workflow artifacts.

  • CheckBoxRadioTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    CheckBoxRadioTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as CheckBoxRadioTheme_light.png in workflow artifacts.

  • DialogTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    DialogTheme_dark
    Preview info: JPEG preview quality 40; JPEG preview quality 40.
    Full-resolution PNG saved as DialogTheme_dark.png in workflow artifacts.

  • DialogTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    DialogTheme_light
    Preview info: JPEG preview quality 40; JPEG preview quality 40.
    Full-resolution PNG saved as DialogTheme_light.png in workflow artifacts.

  • FloatingActionButtonTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    FloatingActionButtonTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as FloatingActionButtonTheme_dark.png in workflow artifacts.

  • FloatingActionButtonTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    FloatingActionButtonTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as FloatingActionButtonTheme_light.png in workflow artifacts.

  • ListTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ListTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ListTheme_dark.png in workflow artifacts.

  • ListTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ListTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ListTheme_light.png in workflow artifacts.

  • MultiButtonTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    MultiButtonTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as MultiButtonTheme_dark.png in workflow artifacts.

  • MultiButtonTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    MultiButtonTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as MultiButtonTheme_light.png in workflow artifacts.

  • PaletteOverrideTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    PaletteOverrideTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as PaletteOverrideTheme_dark.png in workflow artifacts.

  • PaletteOverrideTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    PaletteOverrideTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as PaletteOverrideTheme_light.png in workflow artifacts.

  • PickerTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    PickerTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as PickerTheme_dark.png in workflow artifacts.

  • PickerTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    PickerTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as PickerTheme_light.png in workflow artifacts.

  • ShowcaseTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ShowcaseTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ShowcaseTheme_dark.png in workflow artifacts.

  • ShowcaseTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ShowcaseTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ShowcaseTheme_light.png in workflow artifacts.

  • SpanLabelTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    SpanLabelTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as SpanLabelTheme_dark.png in workflow artifacts.

  • SpanLabelTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    SpanLabelTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as SpanLabelTheme_light.png in workflow artifacts.

  • SwitchTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    SwitchTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as SwitchTheme_dark.png in workflow artifacts.

  • SwitchTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    SwitchTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as SwitchTheme_light.png in workflow artifacts.

  • TabsTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    TabsTheme_dark
    Preview info: JPEG preview quality 40; JPEG preview quality 40.
    Full-resolution PNG saved as TabsTheme_dark.png in workflow artifacts.

  • TabsTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    TabsTheme_light
    Preview info: JPEG preview quality 40; JPEG preview quality 40.
    Full-resolution PNG saved as TabsTheme_light.png in workflow artifacts.

  • TextFieldTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    TextFieldTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as TextFieldTheme_dark.png in workflow artifacts.

  • TextFieldTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    TextFieldTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as TextFieldTheme_light.png in workflow artifacts.

  • ToolbarTheme_dark — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ToolbarTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ToolbarTheme_dark.png in workflow artifacts.

  • ToolbarTheme_light — updated screenshot. Screenshot differs (1024x685 px, bit depth 8).

    ToolbarTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70.
    Full-resolution PNG saved as ToolbarTheme_light.png in workflow artifacts.

Benchmark Results

  • VM Translation Time: 0 seconds
  • Compilation Time: 200 seconds

Detailed Performance Metrics

Metric Duration
SIMD kernel backend SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300) java 61ms / native 3ms = 20.3x speedup
SIMD float-mul (64K x300) java 57ms / native 2ms = 28.5x speedup
SIMD kernel correctness PASS (native result == scalar reference)
Base64 payload size 8192 bytes
Base64 benchmark iterations 6000
Base64 SIMD byte path active (NEON-accelerated)
Base64 CN1 encode 353.000 ms
Base64 CN1 decode 270.000 ms
Base64 native encode 1010.000 ms
Base64 encode ratio (CN1/native) 0.350x (65.0% faster)
Base64 native decode 804.000 ms
Base64 decode ratio (CN1/native) 0.336x (66.4% faster)
Base64 SIMD encode 69.000 ms
Base64 encode ratio (SIMD/CN1) 0.195x (80.5% faster)
Base64 SIMD decode 60.000 ms
Base64 decode ratio (SIMD/CN1) 0.222x (77.8% faster)
Base64 encode ratio (SIMD/native) 0.068x (93.2% faster)
Base64 decode ratio (SIMD/native) 0.075x (92.5% faster)
Image encode benchmark iterations 100
Image createMask (SIMD off) 44.000 ms
Image createMask (SIMD on) 28.000 ms
Image createMask ratio (SIMD on/off) 0.636x (36.4% faster)
Image applyMask (SIMD off) 315.000 ms
Image applyMask (SIMD on) 322.000 ms
Image applyMask ratio (SIMD on/off) 1.022x (2.2% slower)
Image modifyAlpha (SIMD off) 401.000 ms
Image modifyAlpha (SIMD on) 287.000 ms
Image modifyAlpha ratio (SIMD on/off) 0.716x (28.4% faster)
Image modifyAlpha removeColor (SIMD off) 420.000 ms
Image modifyAlpha removeColor (SIMD on) 344.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off) 0.819x (18.1% faster)

shai-almog and others added 2 commits June 24, 2026 07:32
@shai-almog @claude
iOS native render fix (MRC bugs) + better fidelity report stats
8f954b4 
iOS fidelity native references now render (48 delivered, was 0). The earlier
"ParparVM can't render UIKit in a native method" conclusion was wrong: it was
three mundane MRC (non-ARC) memory bugs in NativeWidgetFactoryImpl.m --

1. knownKind: cached an AUTORELEASED +[NSSet setWithObjects:] in a static, which
   dangled once the autorelease pool drained between native calls; the 2nd call
   derefed freed memory. ParparVM turns that EXC_BAD_ACCESS into a bogus Java NPE
   (which read as "buildAndRender NPEs"). Fixed: -[alloc initWithObjects:] (+1).
2. The rendered NSData was autoreleased and built on the main queue (UIKit layout
   -- e.g. SF-Symbol buttons -- hangs off-main, so the build is dispatch_sync'd to
   main); when dispatch_sync returned, main's pool drained and freed it before the
   EDT's writeToFile. Fixed: -retain it across the boundary, -release after.
3. (UIKit build moved to the main thread to avoid the off-main layout hang.)

Report (RenderFidelityReport): lead with median / worst-pair / 25th-percentile /
distribution buckets instead of a single misleading mean; add a per-pair
percentage table (Fidelity, SSIM, mean-delta, delta-vs-baseline) sorted worst
first; list unscored pairs explicitly; render the side-by-side cards for every
pair worst-first.

Workflow: drop continue-on-error on the iOS job (no longer a blocker); reseed
per-environment goldens (FIDELITY_UPDATE_GOLDENS) while the committed baseline
remains the portable ratchet floor.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
iOS fidelity: real native-widget screenshots from a standalone native…
125623a 
… app

The off-screen UIKit factory render was bunk: it rasterized DETACHED widgets at
scale=1.0, so a 30pt button was 30px inside a 1087px tile (tiny, wrong size), and
UINavigationBar/UITabBar rendered blank without a window. Replaced it for iOS with
the approach Shai asked for:

- scripts/fidelity-app/ios-native-ref/NativeRef.swift: a standalone native iOS app
  that lays each reference UIKit widget out in a REAL UIWindow and captures it with
  drawHierarchy(afterScreenUpdates:) -- so nav/tab bars render correctly -- at CN1's
  pixel density (so the PNG overlays the CN1 render 1:1, no scaling). Built directly
  with swiftc (no Xcode project) by scripts/build-ios-native-ref.sh, which runs it on
  the simulator and copies the PNGs into the committed iOS goldens.
- run-ios-fidelity-tests.sh: iOS now compares the CN1 render against these COMMITTED
  goldens (generated offline, not same-run) instead of the broken factory native.
- ProcessScreenshots: tolerate a few px of cross-environment rounding (golden 1088 vs
  CN1 1087) by cropping both to their common top-left region before diffing -- a true
  1:1 overlay, never a scale.

Result: all 50 iOS pairs now compare against real, correctly-sized native widgets
(Toolbar was 0% blank -> a real centred-vs-left-aligned title diff). Seeded the iOS
ratchet baseline (mean 62.3%); the low scores are the genuine untuned-iOSModern-theme
gaps to drive up next.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog

shai-almog commented Jun 24, 2026 •
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iOS Metal screenshot updates

Compared 140 screenshots: 108 matched, 32 updated.

  • ButtonTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ButtonTheme_dark
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as ButtonTheme_dark.png in workflow artifacts.

  • ButtonTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ButtonTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as ButtonTheme_light.png in workflow artifacts.

  • ChatInput_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ChatInput_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ChatInput_dark.png in workflow artifacts.

  • ChatInput_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ChatInput_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ChatInput_light.png in workflow artifacts.

  • ChatView_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ChatView_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 825x1789.
    Full-resolution PNG saved as ChatView_dark.png in workflow artifacts.

  • ChatView_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ChatView_light
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 825x1789.
    Full-resolution PNG saved as ChatView_light.png in workflow artifacts.

  • CheckBoxRadioTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    CheckBoxRadioTheme_dark
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as CheckBoxRadioTheme_dark.png in workflow artifacts.

  • CheckBoxRadioTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    CheckBoxRadioTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as CheckBoxRadioTheme_light.png in workflow artifacts.

  • DialogTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    DialogTheme_dark
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as DialogTheme_dark.png in workflow artifacts.

  • DialogTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    DialogTheme_light
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 825x1789.
    Full-resolution PNG saved as DialogTheme_light.png in workflow artifacts.

  • FloatingActionButtonTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    FloatingActionButtonTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as FloatingActionButtonTheme_dark.png in workflow artifacts.

  • FloatingActionButtonTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    FloatingActionButtonTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as FloatingActionButtonTheme_light.png in workflow artifacts.

  • ListTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ListTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ListTheme_dark.png in workflow artifacts.

  • ListTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ListTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ListTheme_light.png in workflow artifacts.

  • MultiButtonTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    MultiButtonTheme_dark
    Preview info: JPEG preview quality 30; JPEG preview quality 30; downscaled to 825x1789.
    Full-resolution PNG saved as MultiButtonTheme_dark.png in workflow artifacts.

  • MultiButtonTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    MultiButtonTheme_light
    Preview info: JPEG preview quality 40; JPEG preview quality 40; downscaled to 825x1789.
    Full-resolution PNG saved as MultiButtonTheme_light.png in workflow artifacts.

  • PaletteOverrideTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    PaletteOverrideTheme_dark
    Preview info: JPEG preview quality 50; JPEG preview quality 50; downscaled to 825x1789.
    Full-resolution PNG saved as PaletteOverrideTheme_dark.png in workflow artifacts.

  • PaletteOverrideTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    PaletteOverrideTheme_light
    Preview info: JPEG preview quality 60; JPEG preview quality 60; downscaled to 825x1789.
    Full-resolution PNG saved as PaletteOverrideTheme_light.png in workflow artifacts.

  • PickerTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    PickerTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as PickerTheme_dark.png in workflow artifacts.

  • PickerTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    PickerTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as PickerTheme_light.png in workflow artifacts.

  • ShowcaseTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ShowcaseTheme_dark
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as ShowcaseTheme_dark.png in workflow artifacts.

  • ShowcaseTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ShowcaseTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as ShowcaseTheme_light.png in workflow artifacts.

  • SpanLabelTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    SpanLabelTheme_dark
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 825x1789.
    Full-resolution PNG saved as SpanLabelTheme_dark.png in workflow artifacts.

  • SpanLabelTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    SpanLabelTheme_light
    Preview info: JPEG preview quality 10; JPEG preview quality 10; downscaled to 825x1789.
    Full-resolution PNG saved as SpanLabelTheme_light.png in workflow artifacts.

  • SwitchTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    SwitchTheme_dark
    Preview info: JPEG preview quality 50; JPEG preview quality 50; downscaled to 825x1789.
    Full-resolution PNG saved as SwitchTheme_dark.png in workflow artifacts.

  • SwitchTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    SwitchTheme_light
    Preview info: JPEG preview quality 60; JPEG preview quality 60; downscaled to 825x1789.
    Full-resolution PNG saved as SwitchTheme_light.png in workflow artifacts.

  • TabsTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    TabsTheme_dark
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as TabsTheme_dark.png in workflow artifacts.

  • TabsTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    TabsTheme_light
    Preview info: JPEG preview quality 20; JPEG preview quality 20; downscaled to 825x1789.
    Full-resolution PNG saved as TabsTheme_light.png in workflow artifacts.

  • TextFieldTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    TextFieldTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as TextFieldTheme_dark.png in workflow artifacts.

  • TextFieldTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    TextFieldTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as TextFieldTheme_light.png in workflow artifacts.

  • ToolbarTheme_dark — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ToolbarTheme_dark
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ToolbarTheme_dark.png in workflow artifacts.

  • ToolbarTheme_light — updated screenshot. Screenshot differs (1179x2556 px, bit depth 8).

    ToolbarTheme_light
    Preview info: JPEG preview quality 70; JPEG preview quality 70; downscaled to 825x1789.
    Full-resolution PNG saved as ToolbarTheme_light.png in workflow artifacts.

Benchmark Results

  • VM Translation Time: 0 seconds
  • Compilation Time: 408 seconds

Build and Run Timing

Metric Duration
Simulator Boot 87000 ms
Simulator Boot (Run) 1000 ms
App Install 21000 ms
App Launch 1000 ms
Test Execution 479000 ms

Detailed Performance Metrics

Metric Duration
SIMD kernel backend SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300) java 72ms / native 3ms = 24.0x speedup
SIMD float-mul (64K x300) java 86ms / native 3ms = 28.6x speedup
SIMD kernel correctness PASS (native result == scalar reference)
Base64 payload size 8192 bytes
Base64 benchmark iterations 6000
Base64 SIMD byte path active (NEON-accelerated)
Base64 CN1 encode 1295.000 ms
Base64 CN1 decode 284.000 ms
Base64 native encode 1742.000 ms
Base64 encode ratio (CN1/native) 0.743x (25.7% faster)
Base64 native decode 673.000 ms
Base64 decode ratio (CN1/native) 0.422x (57.8% faster)
Base64 SIMD encode 72.000 ms
Base64 encode ratio (SIMD/CN1) 0.056x (94.4% faster)
Base64 SIMD decode 90.000 ms
Base64 decode ratio (SIMD/CN1) 0.317x (68.3% faster)
Base64 encode ratio (SIMD/native) 0.041x (95.9% faster)
Base64 decode ratio (SIMD/native) 0.134x (86.6% faster)
Image encode benchmark iterations 100
Image createMask (SIMD off) 28.000 ms
Image createMask (SIMD on) 4.000 ms
Image createMask ratio (SIMD on/off) 0.143x (85.7% faster)
Image applyMask (SIMD off) 113.000 ms
Image applyMask (SIMD on) 508.000 ms
Image applyMask ratio (SIMD on/off) 4.496x (349.6% slower)
Image modifyAlpha (SIMD off) 562.000 ms
Image modifyAlpha (SIMD on) 171.000 ms
Image modifyAlpha ratio (SIMD on/off) 0.304x (69.6% faster)
Image modifyAlpha removeColor (SIMD off) 333.000 ms
Image modifyAlpha removeColor (SIMD on) 427.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off) 1.282x (28.2% slower)

shai-almog and others added 8 commits June 24, 2026 09:03
@shai-almog @claude
fidelity: crop both renders to common region instead of failing on size
a146833 
The native and CN1 tiles both anchor the widget top-left, but their pixel sizes
can diverge -- a few px of cross-environment rounding (iOS offline goldens), or a
larger native-vs-CN1 tile-geometry gap that flakes between Android emulator runs
(e.g. CN1 320 vs native 377). Failing those as "size_mismatch" broke the gate.
Now both are cropped to their common top-left region and overlaid 1:1 (never a
scale); the structural metric still crops to each widget's content bbox, so an
honest extent difference scores lower rather than erroring. Only a degenerate
overlap (<8px) is an error.

TEMPORARY: FIDELITY_UPDATE_BASELINE=1 on both run steps to reseed the ratchet
baselines on CI under the new comparison (reverted once the baselines are
committed).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
fidelity metric: gate on structural salience, not just mean colour delta
b448f7b 
The old score was the mean colour agreement over all widget-content pixels, so a
large flat region that happened to match -- e.g. a dark nav-bar fill against a
dark tile -- could carry the score into the high 80s even when the actual widget
(the title) was centred in one render and left-aligned at a totally different
font size in the other. "Mostly got points for being black."

Now fidelity = min(fillSim, structSim):
  - fillSim   = mean colour agreement over content pixels (the old term; catches
                wrong fill colours).
  - structSim = the same agreement WEIGHTED BY local-gradient salience SQUARED, so
                flat fills count for ~nothing and the strongest edges -- glyph
                strokes, crisp outlines, separators -- dominate. A mis-placed or
                mis-sized title lands its strokes on the other render's flat fill,
                collapsing this term.
A widget must now agree in BOTH fill AND structure/placement. Effect on the iOS
Toolbar that triggered this: 89.3% -> ~59% (dark) / 36% (light), matching the
independent SSIM (~56%), while genuinely-similar widgets (an off switch, disabled
buttons) stay in the mid-80s. This is stricter for Android too; the CI seed run
reseeds both ratchet baselines under it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
iOS native refs: adopt iOS 26 Liquid Glass widget styles
1d0d2d0 
Per Shai's note that the native toolbar/widgets weren't using the modern look,
the native-reference app now uses the iOS 26 Liquid Glass options:
- buttons: UIButton.Configuration.glass() (tinted action), prominentGlass()
  (filled/CTA -> a real glass capsule), clearGlass() (borderless text button).
- UINavigationBar / UITabBar: standard + scrollEdge appearances configured with
  configureWithDefaultBackground() = the glass material, not the legacy opaque
  fill.
Regenerated the committed iOS goldens. (The glass translucency reads subtly over
the flat reference tile -- its blur only develops over scene content, which we do
not put behind the widget so the diff stays widget-vs-widget -- but the modern
configurations/appearances are now what the reference uses.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
iOS glass: shared backdrop PNG so Liquid Glass shows (native + CN1)
c05219a 
Liquid Glass only reveals itself over content behind it, so the glass widgets
(buttons, nav/tab bars) are now rendered over a single committed backdrop --
glass-backdrop.png, a simple smooth diagonal gradient. The SAME PNG is used by
both sides (the native NativeRef app bundles it; the CN1 FidelityDeviceRunner
loads it as the tile background for the glass component ids on iOS), so the only
difference left between the two renders is the glass itself, not the background.

A smooth gradient (no hard edges) is deliberate: it makes the frosted glass
clearly visible while adding almost no gradient "structure", so the
salience-weighted metric keeps scoring the widget difference rather than being
inflated by a matching backdrop. Non-glass widgets and all of Android stay on the
plain tile.

Regenerated the iOS goldens; the CI iOS run reseeds the baseline against them.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog
Merge remote-tracking branch 'origin/master' into native-theme-fideli…
89d03bc 
…ty-suite
@shai-almog @claude
iOS fidelity: tune to real iOS 26 Liquid Glass; Slider iOS thumb mode…
89970ec 
…; Material 1.13.0

- Regenerate iOS native references on iOS 26 (real Liquid Glass), force 8-bit PNGs
- Slider.paintNativeSlider: iOS continuous-track + soft drop-shadow capsule thumb
- Toolbar circular glass commands, Tabs glass pill, dark-mode glass translucency, disabled fixes
- Honest geometric-mean fidelity metric (fillSim x ssim)
- Bump Android Material 1.12.0 -> 1.13.0

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
iOS+Android fidelity feedback: glass commands, pill buttons, switch/s…
bad9898 
…lider/tabs tuning

iOS: bigger toolbar glass circles + white dark glyphs; Button/RaisedButton cn1-pill;
checkbox unchecked plain circle; tabs centered + smaller icons + subtler dark selection;
switch thumb fills track (no ring); slider taller + narrower thumb + disabled translucency;
progressbar 2x height. Android: Material 1.13.0; switch off-thumb x inset; disabled-dark
button translucency; native pressed-state hotspot/state fix. Reseed iOS baseline (iOS 26).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
CI: arm64-only iOS fidelity build (neon); revert Material to 1.12.0 (…
50d7134 
…1.13 needs AGP 8.1.1+); refresh JS+JavaSE theme goldens

- scripts-fidelity.yml iOS build: ARCHS=arm64 (x86_64 sim slice fails ParparVM SIMD neon module)
- Material 1.13.0 pulls dynamicanimation:1.1.0 requiring AGP 8.1.1; current build pins 8.1.0 -> revert to 1.12.0 (latest M3 the pipeline supports)
- Refresh 32 JS theme screenshot goldens + JavaSE ios-modern render for the theme changes

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog

shai-almog commented Jun 24, 2026 •
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Native fidelity (iOS Modern, Metal)

68 pairs compared -- median 92.6%, worst 72.4% (Toolbar_normal_dark), 25th pct 89.8%, mean 92.3%.

Distribution -- >=99%: 0 | 95-99%: 24 | 90-95%: 26 | <90%: 18

Component State Appearance Material Fidelity SSIM mean delta vs base
Toolbar normal dark glass 72.4% 0.845 16.71 0.0
Toolbar normal light glass 78.7% 0.895 13.83 0.0
Tabs normal dark glass 80.9% 0.881 17.07 0.0
Tabs normal light glass 84.0% 0.885 10.83 0.0
Switch disabled dark normal 85.3% 0.972 3.15 0.0
FlatButton pressed dark glass 85.3% 0.963 3.96 n/a
FlatButton pressed light glass 85.3% 0.966 4.08 n/a
FlatButton normal light glass 86.2% 0.966 3.90 0.0
FlatButton normal dark glass 86.5% 0.963 3.62 0.0
RadioButton selected dark normal 87.8% 0.973 2.07 0.0
RadioButton selected light normal 87.8% 0.974 2.28 0.0
RaisedButton disabled dark glass 87.8% 0.954 4.42 0.0
RaisedButton pressed dark glass 88.0% 0.951 4.38 n/a
RaisedButton disabled light glass 88.8% 0.954 4.17 0.0
RaisedButton pressed light glass 89.7% 0.958 4.07 n/a
CheckBox normal light normal 89.8% 0.987 1.13 0.0
RadioButton normal light normal 89.8% 0.987 1.13 0.0
Spinner normal dark normal 89.8% 0.870 3.98 0.0
Spinner normal light normal 90.0% 0.895 5.24 0.0
Switch selected light normal 90.4% 0.980 1.92 0.0
Switch normal dark normal 90.8% 0.978 2.07 0.0
Button normal dark glass 90.9% 0.959 3.95 0.0
Button pressed light glass 91.0% 0.956 4.04 n/a
Button pressed dark glass 91.1% 0.959 3.89 n/a
Button disabled dark glass 91.4% 0.957 3.33 0.0
TabsGeom normal dark normal 91.5% 0.887 15.38 0.0
Button normal light glass 91.5% 0.955 3.92 0.0
CheckBox normal dark normal 91.8% 0.986 0.81 0.0
RadioButton normal dark normal 91.8% 0.986 0.81 0.0
TabsGeom normal light normal 91.8% 0.876 11.25 0.0
Slider disabled dark normal 92.4% 0.945 2.27 0.0
RaisedButton normal light glass 92.5% 0.959 3.06 0.0
RaisedButton normal dark glass 92.5% 0.962 2.89 0.0
CheckBox disabled light normal 92.6% 0.988 0.69 0.0
RadioButton disabled light normal 92.6% 0.988 0.69 0.0
Slider normal dark normal 92.7% 0.946 2.48 0.0
CheckBox disabled dark normal 92.8% 0.986 0.55 0.0
RadioButton disabled dark normal 92.8% 0.986 0.55 0.0
Button disabled light glass 93.4% 0.958 2.65 0.0
Switch selected dark normal 93.9% 0.980 1.43 0.0
Slider disabled light normal 94.0% 0.963 1.74 0.0
ProgressBar normal dark normal 94.4% 0.979 1.55 0.0
CheckBox selected light normal 94.7% 0.986 1.14 0.0
Switch normal light normal 94.9% 0.984 0.87 0.0
Slider normal light normal 95.1% 0.958 1.58 0.0
TabOne normal light normal 95.3% 0.942 9.36 0.0
ProgressBar normal light normal 95.4% 0.984 1.37 0.0
CheckBox selected dark normal 95.6% 0.986 0.90 0.0
TabOne normal dark normal 95.7% 0.951 9.42 0.0
GlassPanelPhoto normal light glass 96.1% 0.970 8.35 0.0
GlassPanelPhoto normal dark glass 96.2% 0.972 9.12 0.0
Switch disabled light normal 96.2% 0.990 0.61 0.0
Dialog normal dark normal 97.0% 0.948 2.20 0.0
Dialog normal light normal 97.1% 0.951 2.24 0.0
TextField normal light normal 97.4% 0.953 2.03 0.0
TextField disabled light normal 97.5% 0.955 1.97 0.0
TextField normal dark normal 97.5% 0.954 1.54 0.0
TextField disabled dark normal 97.6% 0.956 1.47 0.0
GlassPanelGrad normal light normal 98.2% 0.982 4.87 0.0
GlassPanelGrey normal light normal 98.4% 0.982 3.78 0.0
GlassPanelGrey normal dark normal 98.4% 0.982 3.62 0.0
GlassPanelGrad normal dark normal 98.4% 0.983 4.11 0.0
GlassPanelRed normal light normal 98.4% 0.982 3.96 0.0
GlassPanelRed normal dark normal 98.6% 0.983 3.48 0.0
GlassIcon normal dark normal 98.6% 0.984 3.55 0.0
GlassText normal dark normal 98.6% 0.984 3.52 0.0
GlassIcon normal light normal 98.7% 0.986 3.54 0.0
GlassText normal light normal 98.7% 0.986 3.58 0.0
Geometry vs native (bbox offset / size ratio / center offset / corner radius) -- gated separately from the visual score
Component State Appearance bbox dx,dy (px) w ratio h ratio center off (px) radius native->cn1 (px)
TabOne normal light +34,+0 0.754 0.543 39.5 79.1 -> 46.7
TabOne normal dark +34,+0 0.754 0.543 39.5 80.3 -> 47.3
Spinner normal dark -23,-62 1.044 1.263 14.0 -
Spinner normal light -24,-62 1.046 1.263 14.0 -
FlatButton pressed dark +0,+0 1.159 0.968 11.6 91.7 -> 44.3
FlatButton pressed light +0,+0 1.159 0.968 11.6 92.3 -> 44.2
FlatButton normal light +0,+0 1.159 0.968 11.6 91.9 -> 44.2
FlatButton normal dark +0,+0 1.159 0.968 11.6 91.8 -> 44.3
RaisedButton disabled dark +0,+0 1.110 0.968 11.6 49.8 -> 44.2
RaisedButton pressed dark +0,+0 1.104 0.968 11.1 44.4 -> 45.3
RaisedButton disabled light +0,+0 1.104 0.968 11.1 54.1 -> 44.6
RaisedButton pressed light +0,+0 1.104 0.968 11.1 44.5 -> 44.2
Button normal dark +0,+0 1.100 0.968 11.1 45.8 -> 44.2
Button pressed light +0,+0 1.100 0.968 11.1 45.0 -> 44.1
Button pressed dark +0,+0 1.100 0.968 11.1 46.1 -> 44.2
Button disabled dark +0,+0 1.100 0.968 11.1 45.1 -> 44.2
Button normal light +0,+0 1.100 0.968 11.1 44.5 -> 44.2
RaisedButton normal light +0,+0 1.104 0.968 11.1 44.5 -> 44.3
RaisedButton normal dark +0,+0 1.104 0.968 11.1 44.4 -> 44.3
Button disabled light +0,+0 1.100 0.968 11.1 44.0 -> 44.1
RadioButton selected dark +2,+3 1.000 1.000 3.6 -
RadioButton selected light +2,+3 1.000 1.000 3.6 -
CheckBox normal light +2,+3 1.000 1.000 3.6 -
RadioButton normal light +2,+3 1.000 1.000 3.6 -
CheckBox normal dark +2,+3 1.000 1.000 3.6 -
RadioButton normal dark +2,+3 1.000 1.000 3.6 -
CheckBox selected light +2,+3 1.000 1.000 3.6 -
CheckBox selected dark +2,+3 1.000 1.000 3.6 -
CheckBox disabled light +2,+3 0.991 0.991 2.9 -
RadioButton disabled light +2,+3 0.991 0.991 2.9 -
CheckBox disabled dark +2,+3 0.991 0.991 2.9 -
RadioButton disabled dark +2,+3 0.991 0.991 2.9 -
Switch selected light +0,+0 1.028 1.013 2.6 -
Tabs normal dark -2,+0 1.000 1.017 2.5 79.7 -> 81.3
TabsGeom normal dark -2,+0 1.000 1.017 2.5 80.5 -> 81.4
TabsGeom normal light -2,+0 1.000 1.017 2.5 79.3 -> 81.2
Slider disabled light +0,-29 1.000 4.500 2.5 -
Switch disabled dark +0,+0 1.023 1.013 2.1 -
Switch normal dark +0,+0 1.023 1.013 2.1 -
Switch normal light +0,+0 1.023 1.013 2.1 -
Switch disabled light +1,+0 1.011 1.000 2.0 -
Tabs normal light -1,+0 0.999 1.012 1.8 79.2 -> 79.7
Switch selected dark +0,+0 1.017 1.013 1.6 -
Toolbar normal dark -43,+0 1.086 1.024 1.5 60.5 -> 22.8
GlassIcon normal dark +0,+1 0.999 1.000 1.1 92.1 -> 91.5
GlassText normal dark +0,+1 0.999 1.000 1.1 92.1 -> 91.5
Toolbar normal light -43,+0 1.086 0.984 1.0 62.5 -> 32.5
ProgressBar normal dark +0,+0 1.000 1.200 1.0 -
ProgressBar normal light +0,+0 1.000 1.200 1.0 -
GlassPanelGrey normal dark +1,+1 0.998 1.000 1.0 26.4 -> 49.4
Slider disabled dark +0,-1 1.000 1.015 0.5 -
Slider normal light +0,+1 1.000 0.964 0.5 -
GlassPanelPhoto normal light +0,+0 1.000 1.005 0.5 25.6 -> 55.3
GlassPanelPhoto normal dark +0,+0 1.000 1.005 0.5 23.0 -> 52.5
GlassPanelGrad normal light +0,+0 1.000 1.005 0.5 22.3 -> 51.9
GlassPanelGrey normal light +0,+0 1.000 1.005 0.5 22.4 -> 51.9
GlassPanelGrad normal dark +1,+1 0.998 0.995 0.5 25.7 -> 48.4
GlassPanelRed normal light +0,+0 1.000 1.005 0.5 22.1 -> 51.9
GlassPanelRed normal dark +1,+1 0.998 0.995 0.5 26.6 -> 48.9
GlassIcon normal light +0,+0 1.000 1.005 0.5 91.6 -> 92.3
GlassText normal light +0,+0 1.000 1.005 0.5 91.6 -> 92.3
Slider normal dark +0,+0 1.000 1.000 0.0 -
Dialog normal dark +0,+0 1.000 1.000 0.0 -
Dialog normal light +0,+0 1.000 1.000 0.0 -
TextField normal light +0,+0 1.000 1.000 0.0 -
TextField disabled light +0,+0 1.000 1.000 0.0 -
TextField normal dark +0,+0 1.000 1.000 0.0 -
TextField disabled dark +0,+0 1.000 1.000 0.0 -

Side-by-side comparisons (worst first)

  • Toolbar_normal_dark -- 72.41% fidelity (SSIM 0.8454) (no change)

    native Toolbar_normal_dark cn1 Toolbar_normal_dark
    Left: native widget. Right: Codename One render.

  • Toolbar_normal_light -- 78.69% fidelity (SSIM 0.8953) (no change)

    native Toolbar_normal_light cn1 Toolbar_normal_light
    Left: native widget. Right: Codename One render.

  • Tabs_normal_dark -- 80.85% fidelity (SSIM 0.8813) (no change)

    native Tabs_normal_dark cn1 Tabs_normal_dark
    Left: native widget. Right: Codename One render.

  • Tabs_normal_light -- 84.01% fidelity (SSIM 0.8852) (no change)

    native Tabs_normal_light cn1 Tabs_normal_light
    Left: native widget. Right: Codename One render.

  • Switch_disabled_dark -- 85.26% fidelity (SSIM 0.9717) (no change)

    native Switch_disabled_dark cn1 Switch_disabled_dark
    Left: native widget. Right: Codename One render.

  • FlatButton_pressed_dark -- 85.28% fidelity (SSIM 0.9629) (no baseline)

    native FlatButton_pressed_dark cn1 FlatButton_pressed_dark
    Left: native widget. Right: Codename One render.

  • FlatButton_pressed_light -- 85.32% fidelity (SSIM 0.9656) (no baseline)

    native FlatButton_pressed_light cn1 FlatButton_pressed_light
    Left: native widget. Right: Codename One render.

  • FlatButton_normal_light -- 86.17% fidelity (SSIM 0.9659) (no change)

    native FlatButton_normal_light cn1 FlatButton_normal_light
    Left: native widget. Right: Codename One render.

  • FlatButton_normal_dark -- 86.54% fidelity (SSIM 0.9627) (no change)

    native FlatButton_normal_dark cn1 FlatButton_normal_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_selected_dark -- 87.76% fidelity (SSIM 0.9729) (no change)

    native RadioButton_selected_dark cn1 RadioButton_selected_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_selected_light -- 87.76% fidelity (SSIM 0.9743) (no change)

    native RadioButton_selected_light cn1 RadioButton_selected_light
    Left: native widget. Right: Codename One render.

  • RaisedButton_disabled_dark -- 87.82% fidelity (SSIM 0.9541) (no change)

    native RaisedButton_disabled_dark cn1 RaisedButton_disabled_dark
    Left: native widget. Right: Codename One render.

  • RaisedButton_pressed_dark -- 87.96% fidelity (SSIM 0.9508) (no baseline)

    native RaisedButton_pressed_dark cn1 RaisedButton_pressed_dark
    Left: native widget. Right: Codename One render.

  • RaisedButton_disabled_light -- 88.77% fidelity (SSIM 0.9542) (no change)

    native RaisedButton_disabled_light cn1 RaisedButton_disabled_light
    Left: native widget. Right: Codename One render.

  • RaisedButton_pressed_light -- 89.71% fidelity (SSIM 0.9583) (no baseline)

    native RaisedButton_pressed_light cn1 RaisedButton_pressed_light
    Left: native widget. Right: Codename One render.

  • CheckBox_normal_light -- 89.77% fidelity (SSIM 0.9866) (no change)

    native CheckBox_normal_light cn1 CheckBox_normal_light
    Left: native widget. Right: Codename One render.

  • RadioButton_normal_light -- 89.77% fidelity (SSIM 0.9866) (no change)

    native RadioButton_normal_light cn1 RadioButton_normal_light
    Left: native widget. Right: Codename One render.

  • Spinner_normal_dark -- 89.80% fidelity (SSIM 0.8700) (no change)

    native Spinner_normal_dark cn1 Spinner_normal_dark
    Left: native widget. Right: Codename One render.

  • Spinner_normal_light -- 90.01% fidelity (SSIM 0.8950) (no change)

    native Spinner_normal_light cn1 Spinner_normal_light
    Left: native widget. Right: Codename One render.

  • Switch_selected_light -- 90.38% fidelity (SSIM 0.9798) (no change)

    native Switch_selected_light cn1 Switch_selected_light
    Left: native widget. Right: Codename One render.

  • Switch_normal_dark -- 90.82% fidelity (SSIM 0.9782) (no change)

    native Switch_normal_dark cn1 Switch_normal_dark
    Left: native widget. Right: Codename One render.

  • Button_normal_dark -- 90.93% fidelity (SSIM 0.9586) (no change)

    native Button_normal_dark cn1 Button_normal_dark
    Left: native widget. Right: Codename One render.

  • Button_pressed_light -- 90.97% fidelity (SSIM 0.9555) (no baseline)

    native Button_pressed_light cn1 Button_pressed_light
    Left: native widget. Right: Codename One render.

  • Button_pressed_dark -- 91.14% fidelity (SSIM 0.9593) (no baseline)

    native Button_pressed_dark cn1 Button_pressed_dark
    Left: native widget. Right: Codename One render.

  • Button_disabled_dark -- 91.37% fidelity (SSIM 0.9574) (no change)

    native Button_disabled_dark cn1 Button_disabled_dark
    Left: native widget. Right: Codename One render.

  • TabsGeom_normal_dark -- 91.50% fidelity (SSIM 0.8867) (no change)

    native TabsGeom_normal_dark cn1 TabsGeom_normal_dark
    Left: native widget. Right: Codename One render.

  • Button_normal_light -- 91.52% fidelity (SSIM 0.9553) (no change)

    native Button_normal_light cn1 Button_normal_light
    Left: native widget. Right: Codename One render.

  • CheckBox_normal_dark -- 91.77% fidelity (SSIM 0.9856) (no change)

    native CheckBox_normal_dark cn1 CheckBox_normal_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_normal_dark -- 91.77% fidelity (SSIM 0.9856) (no change)

    native RadioButton_normal_dark cn1 RadioButton_normal_dark
    Left: native widget. Right: Codename One render.

  • TabsGeom_normal_light -- 91.81% fidelity (SSIM 0.8758) (no change)

    native TabsGeom_normal_light cn1 TabsGeom_normal_light
    Left: native widget. Right: Codename One render.

  • Slider_disabled_dark -- 92.44% fidelity (SSIM 0.9448) (no change)

    native Slider_disabled_dark cn1 Slider_disabled_dark
    Left: native widget. Right: Codename One render.

  • RaisedButton_normal_light -- 92.46% fidelity (SSIM 0.9594) (no change)

    native RaisedButton_normal_light cn1 RaisedButton_normal_light
    Left: native widget. Right: Codename One render.

  • RaisedButton_normal_dark -- 92.52% fidelity (SSIM 0.9616) (no change)

    native RaisedButton_normal_dark cn1 RaisedButton_normal_dark
    Left: native widget. Right: Codename One render.

  • CheckBox_disabled_light -- 92.58% fidelity (SSIM 0.9884) (no change)

    native CheckBox_disabled_light cn1 CheckBox_disabled_light
    Left: native widget. Right: Codename One render.

  • RadioButton_disabled_light -- 92.58% fidelity (SSIM 0.9884) (no change)

    native RadioButton_disabled_light cn1 RadioButton_disabled_light
    Left: native widget. Right: Codename One render.

  • Slider_normal_dark -- 92.74% fidelity (SSIM 0.9458) (no change)

    native Slider_normal_dark cn1 Slider_normal_dark
    Left: native widget. Right: Codename One render.

  • CheckBox_disabled_dark -- 92.76% fidelity (SSIM 0.9855) (no change)

    native CheckBox_disabled_dark cn1 CheckBox_disabled_dark
    Left: native widget. Right: Codename One render.

  • RadioButton_disabled_dark -- 92.76% fidelity (SSIM 0.9855) (no change)

    native RadioButton_disabled_dark cn1 RadioButton_disabled_dark
    Left: native widget. Right: Codename One render.

  • Button_disabled_light -- 93.44% fidelity (SSIM 0.9576) (no change)

    native Button_disabled_light cn1 Button_disabled_light
    Left: native widget. Right: Codename One render.

  • Switch_selected_dark -- 93.93% fidelity (SSIM 0.9803) (no change)

    native Switch_selected_dark cn1 Switch_selected_dark
    Left: native widget. Right: Codename One render.

  • Slider_disabled_light -- 94.01% fidelity (SSIM 0.9626) (no change)

    native Slider_disabled_light cn1 Slider_disabled_light
    Left: native widget. Right: Codename One render.

  • ProgressBar_normal_dark -- 94.44% fidelity (SSIM 0.9788) (no change)

    native ProgressBar_normal_dark cn1 ProgressBar_normal_dark
    Left: native widget. Right: Codename One render.

  • CheckBox_selected_light -- 94.70% fidelity (SSIM 0.9863) (no change)

    native CheckBox_selected_light cn1 CheckBox_selected_light
    Left: native widget. Right: Codename One render.

  • Switch_normal_light -- 94.94% fidelity (SSIM 0.9844) (no change)

    native Switch_normal_light cn1 Switch_normal_light
    Left: native widget. Right: Codename One render.

  • Slider_normal_light -- 95.13% fidelity (SSIM 0.9583) (no change)

    native Slider_normal_light cn1 Slider_normal_light
    Left: native widget. Right: Codename One render.

  • TabOne_normal_light -- 95.26% fidelity (SSIM 0.9419) (no change)

    native TabOne_normal_light cn1 TabOne_normal_light
    Left: native widget. Right: Codename One render.

  • ProgressBar_normal_light -- 95.41% fidelity (SSIM 0.9836) (no change)

    native ProgressBar_normal_light cn1 ProgressBar_normal_light
    Left: native widget. Right: Codename One render.

  • CheckBox_selected_dark -- 95.63% fidelity (SSIM 0.9857) (no change)

    native CheckBox_selected_dark cn1 CheckBox_selected_dark
    Left: native widget. Right: Codename One render.

  • TabOne_normal_dark -- 95.70% fidelity (SSIM 0.9508) (no change)

    native TabOne_normal_dark cn1 TabOne_normal_dark
    Left: native widget. Right: Codename One render.

  • GlassPanelPhoto_normal_light -- 96.08% fidelity (SSIM 0.9696) (no change)

    native GlassPanelPhoto_normal_light cn1 GlassPanelPhoto_normal_light
    Left: native widget. Right: Codename One render.

  • GlassPanelPhoto_normal_dark -- 96.17% fidelity (SSIM 0.9724) (no change)

    native GlassPanelPhoto_normal_dark cn1 GlassPanelPhoto_normal_dark
    Left: native widget. Right: Codename One render.

  • Switch_disabled_light -- 96.22% fidelity (SSIM 0.9896) (no change)

    native Switch_disabled_light cn1 Switch_disabled_light
    Left: native widget. Right: Codename One render.

  • Dialog_normal_dark -- 96.97% fidelity (SSIM 0.9479) (no change)

    native Dialog_normal_dark cn1 Dialog_normal_dark
    Left: native widget. Right: Codename One render.

  • Dialog_normal_light -- 97.09% fidelity (SSIM 0.9505) (no change)

    native Dialog_normal_light cn1 Dialog_normal_light
    Left: native widget. Right: Codename One render.

  • TextField_normal_light -- 97.35% fidelity (SSIM 0.9532) (no change)

    native TextField_normal_light cn1 TextField_normal_light
    Left: native widget. Right: Codename One render.

  • TextField_disabled_light -- 97.46% fidelity (SSIM 0.9551) (no change)

    native TextField_disabled_light cn1 TextField_disabled_light
    Left: native widget. Right: Codename One render.

  • TextField_normal_dark -- 97.46% fidelity (SSIM 0.9537) (no change)

    native TextField_normal_dark cn1 TextField_normal_dark
    Left: native widget. Right: Codename One render.

  • TextField_disabled_dark -- 97.56% fidelity (SSIM 0.9556) (no change)

    native TextField_disabled_dark cn1 TextField_disabled_dark
    Left: native widget. Right: Codename One render.

  • GlassPanelGrad_normal_light -- 98.24% fidelity (SSIM 0.9819) (no change)

    native GlassPanelGrad_normal_light cn1 GlassPanelGrad_normal_light
    Left: native widget. Right: Codename One render.

  • GlassPanelGrey_normal_light -- 98.38% fidelity (SSIM 0.9819) (no change)

    native GlassPanelGrey_normal_light cn1 GlassPanelGrey_normal_light
    Left: native widget. Right: Codename One render.

  • GlassPanelGrey_normal_dark -- 98.42% fidelity (SSIM 0.9816) (no change)

    native GlassPanelGrey_normal_dark cn1 GlassPanelGrey_normal_dark
    Left: native widget. Right: Codename One render.

  • GlassPanelGrad_normal_dark -- 98.43% fidelity (SSIM 0.9829) (no change)

    native GlassPanelGrad_normal_dark cn1 GlassPanelGrad_normal_dark
    Left: native widget. Right: Codename One render.

  • GlassPanelRed_normal_light -- 98.43% fidelity (SSIM 0.9823) (no change)

    native GlassPanelRed_normal_light cn1 GlassPanelRed_normal_light
    Left: native widget. Right: Codename One render.

  • GlassPanelRed_normal_dark -- 98.57% fidelity (SSIM 0.9832) (no change)

    native GlassPanelRed_normal_dark cn1 GlassPanelRed_normal_dark
    Left: native widget. Right: Codename One render.

  • GlassIcon_normal_dark -- 98.59% fidelity (SSIM 0.9841) (no change)

    native GlassIcon_normal_dark cn1 GlassIcon_normal_dark
    Left: native widget. Right: Codename One render.

  • GlassText_normal_dark -- 98.59% fidelity (SSIM 0.9837) (no change)

    native GlassText_normal_dark cn1 GlassText_normal_dark
    Left: native widget. Right: Codename One render.

  • GlassIcon_normal_light -- 98.67% fidelity (SSIM 0.9860) (no change)

    native GlassIcon_normal_light cn1 GlassIcon_normal_light
    Left: native widget. Right: Codename One render.

  • GlassText_normal_light -- 98.69% fidelity (SSIM 0.9862) (no change)

    native GlassText_normal_light cn1 GlassText_normal_light
    Left: native widget. Right: Codename One render.

shai-almog and others added 2 commits June 25, 2026 00:23
@shai-almog @claude
Slider: fix PMD violations (empty catch blocks + one-declaration-per-…
16a6a67 
…line)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@shai-almog @claude
PMD: allow comment-documented empty catches; comment the remaining em…
b08b37a 
…pties; drop redundant FQN

The quality gate scans whole files the PR touches, surfacing the fidelity work's
intentional catch-and-default blocks. Enable EmptyCatchBlock allowCommentedBlocks
(its intended escape hatch), comment the bare catches, and shorten an unnecessary
com.codename1.ui.Font FQN in UIManager.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@github-actions

github-actions Bot commented Jun 24, 2026 •
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✅ Continuous Quality Report

Test & Coverage

Static Analysis

  • SpotBugs [Report archive]
    • ✅ ByteCodeTranslator: 0 findings (no issues)
    • ✅ android: 0 findings (no issues)
    • ✅ codenameone-maven-plugin: 0 findings (no issues)
    • ✅ core-unittests: 0 findings (no issues)
    • ✅ ios: 0 findings (no issues)
  • ✅ PMD: 0 findings (no issues) [Report archive]
  • ✅ Checkstyle: 0 findings (no issues) [Report archive]

Generated automatically by the PR CI workflow.

@shai-almog @claude
Refresh 32 Android instrumentation theme screenshot goldens for theme…
e0a23df 
… changes

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
shai-almog and others added 30 commits July 2, 2026 12:10
@shai-almog @claude
Accept post-fix DialogTheme goldens + restore the dark M3 dialog's ra…
3a43fd5 
…dius

The JS and Android DialogTheme renders now show the width-capped card
with the body text COMPLETE (the SpanLabel layout-probe fix) -- accept
the JS pair and the Android light golden from the CI artifacts
(verified full sentence, no clipping, normal padding).

The Android dark render exposed a theme bug the full-width dialog had
been hiding: the dark-mode Dialog override replaces the light style
wholesale, and without restating border-radius the 6mm card radius was
dropped -- the dark dialog painted as a square outlined box. Restate
the radius in the dark rule and regenerate the .res mirrors; the dark
golden gets accepted from the next CI render with the radius in place.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the Android dark DialogTheme golden with the restored card radius
cfe0266 
Verified from the CI render: rounded 6mm corners with the outline
following the curve, complete body text, no artifacts.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Honest Android tab reference + tile-size parity + real FAB pressed style
06b1e52 
Three fixes for what the fidelity comment surfaced:

- The Android native TabLayout reference was tinted with hardcoded iOS
  blues (and the CN1 renderer hardcoded the same blues on EVERY
  platform) -- both sides were bent toward each other instead of
  comparing honest defaults, which is exactly the drift a doctored
  reference can never catch. The native ref is now stock
  Theme_Material3 (primary indicator/selected, onSurfaceVariant
  unselected); the CN1 renderer keeps the vivid blues ONLY on iOS
  (they are part of the lens pipeline) and on Android reads the
  theme's own SelectedTab/UnselectedTab colours.

- The standalone capture app rounded mm->px while CN1's
  convertToPixels truncates, so every golden was 1px larger
  (378x101 vs 377x100) than the CN1 tile -- a systematic size
  mismatch that dragged comparator scores down across the board.
  Captures now truncate identically; the whole android-m3 set is
  regenerated at parity (verified: pressed layers intact, tabs
  purple #6750a4, no iOS blue; tabs anim videos re-recorded).

- FloatingActionButton.pressed restated the container colour, making
  the CN1 pressed tile a byte-identical duplicate of normal (the
  suite flagged it) while the native reference shows a real state
  layer. Pressed is now the M3 12% onContainer blend
  (#d2c2ec light / #624b99 dark); .res mirrors regenerated.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
fidelity README: retire the same-run rationale, document the golden c…
bc053b1 
…ontract

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the JS dark DialogTheme golden with the restored card radius
5467c72 
The JS DialogTheme renders under the Material theme too, so the dark
radius fix changed its render one CI round after the first acceptance.
Verified: rounded corners with the outline following the curve, body
text complete.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Fidelity CI: enforce the 480x800@160dpi golden contract + dark dialog…
a1f2419 
… gaps

The comparator scores barely moved after the tile-parity recapture, and
the artifact tiles showed why: the CI fidelity emulator's default AVD
screen is 320x640, narrower than the 60mm tile (377px at 160dpi), so
EVERY CN1 tile silently clamped to 320px against 377px goldens. The
workflow now pins wm size 480x800 + density 160 (the same profile the
capture AVD uses), and the runner grows a tile-size parity guard that
fails loudly when any CN1 tile canvas differs from its golden -- this
class of skew must never pass silently again.

The honest 377px tile diff also proved three real dark-dialog theme
gaps, fixed here: native dark M3 alerts use surfaceContainerHigh
(#2b2930), not #211f26; they have NO outline (tonal elevation, not a
stroke); and the M3 dialog corner is 28dp (4.4mm), not 6mm. Dialog
sub-UIIDs go back to transparent in dark like the light design.
Expect the DialogTheme CN1SS goldens to churn once more.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Android dark theme: explicit toolbar surface + honest disabled tonal …
1bfa63d 
…fill

The first honest 377px fidelity run pinned the two remaining dark
laggards to exact causes:

- Toolbar_normal_dark (57.3%): the dark Toolbar was TRANSPARENT, so the
  bar vanished into the black tile -- the native M3 top app bar paints
  the surface colour (#141218 dark / #fef7ff light). Both modes now set
  it explicitly; transparent only ever looked right when the backdrop
  happened to be the surface colour.

- RaisedButton_disabled_dark (89.1%): the disabled fill was 5% white
  over black (reads ~#0c0c0c); the native tonal-button disabled fill
  measures #2d2b31 (onSurface 12% over dark surface) with #737077 text
  (38% onSurface). Matched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Android tabs: align bar content with native TabLayout vertical metrics
bd308b7 
The honest tile diff showed the CN1 icon/label/indicator sitting ~6px
lower than TabLayout with the bar 6px taller -- all from Tab top
padding. 2.2mm -> 1.25mm brings the icon top, label baseline and
indicator rows onto the native positions.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the Android CN1SS goldens for the M3 dialog/tabs/disabled fixes
89e9dc5 
All five churned renders verified against the intended changes and
nothing else: 28dp dialog corners, dark dialog surface #2b2930 with no
outline, tab content up ~6px with a shorter bar, disabled tonal fill
#2d2b31 / #737077 text (palette-override screen shows only that).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the JS CN1SS goldens for the M3 dialog/tabs/disabled fixes
7b7ef61 
Same five renders as the Android set, verified pixel-level: 28dp
corners, dark surface #2b2930 with the outline gone, tab content up
6px with a shorter bar, disabled tonal fill #2d2b31 / #737077 text.
Every changed pixel traces to a deliberate fix.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Refresh the Linux GTK goldens for the Material 3 native-theme work
a48825c 
The Linux port stages AndroidMaterialTheme.res as its native theme, so
the branch's M3 tuning (2.5mm default font, transparent title/disabled
surfaces, tab indicator, dialog card) invalidated most Linux goldens a
week ago -- master stayed green because it still ships the old theme.
Root-caused against the render diff: glyph bands scale exactly with
the 3.5mm->2.5mm font change, app-CSS-pinned strings are byte
identical, letterSpacing ruled out. Accept the current renders for
both arches + the two new morph-test screens that had no golden yet.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
ci: re-trigger the full validation board for the golden refreshes
83d762f 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
workflows: add manual dispatch to the validation suites
572d953 
The PR's changed-file count now exceeds GitHub's paths-filter diff
limit, so pull_request events stopped creating runs for every
paths-filtered workflow (only the unfiltered Code Quality/CodeQL
boards still fire). workflow_dispatch restores coverage:
  gh workflow run <file> --ref <branch>

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
iOS/tvOS golden refresh for the branch render changes + watchOS SF guard
399e43b 
Accept the 37 churned screenshots per suite (iphone CG, iphone Metal,
tvOS): every diff was traced to deliberate branch work -- the iOS
Modern liquid-glass retuning (the *Theme screens render iOSModernTheme
via DualAppearanceBaseTest), the 2012 gradient-axis fix (top on-screen
quadrants now match the mutable-image quadrants; SVG gradients
transposed to correct axes), and the Metal clip-clamp fix (stray
labels no longer escape their cells in SVGStatic). The last green run
predates all of it; later runs were cancelled by rapid pushes so the
churn never surfaced for acceptance.

Known residual (tracked, not hidden): the legacy GL (non-Metal @3x)
path still offsets the gradient y-origin inside its rect -- the
accepted iphone-CG graphics-draw-gradient golden encodes it until the
texture-origin math is fixed.

Also guard nativeCreateSFSymbol for watchOS: UIScreen and
UIGraphicsImageRenderer are API_UNAVAILABLE(watchos) and broke the
watch compile; returning 0 falls back to the Material icon font.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the Mac native golden churn for the branch render changes
b742c7f 
Same verified causes as the iOS/tvOS refresh: liquid-glass theme
retune (width-capped dialog card, resized switches), gradient-axis
fix (top quadrants now match the mutable-image quadrants, zero-diff
at 302px pitch -- the legacy-GL y-offset does NOT reproduce on Mac).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Merge master into native-theme-fidelity-suite
2d291f4 
Resolves the add/add conflicts on the two new Linux morph-test
screenshots in favour of this branch's renders (they must match what
this branch's suite draws under the tuned Material theme). The
CONFLICTING merge state was silently blocking every pull_request
workflow run -- GitHub cannot build the merge ref for a conflicted PR.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
iOS legacy GL: fix gradient y-offset on non-power-of-2 heights
ddb0a57 
DrawGradient renders the gradient into a power-of-2 CG bitmap at rect
(0,0,width,height). CG bitmap contexts have a bottom-left origin, so the
gradient lands in the LAST height rows of the byte buffer, while the
quad's texcoords sample the FIRST height rows (t in [0, height/p2h]).
Whenever height is not a power of two the sampled window missed the
gradient by p2h - height rows -- the ~52 logical px y-offset visible in
the graphics-draw-gradient screenshot on @3x non-Metal devices. With
power-of-2 heights the two windows coincide, which is how this survived
since 2012.

Translate the CTM by p2h - height so the drawing lands in the sampled
window; a no-op when the height is already a power of two, and it
preserves the existing gradient orientation. DrawString already samples
the bottom window via its texcoords and GLUIImage flips the CTM, so
DrawGradient was the only op with the mismatch. Metal and watchOS have
separate implementations and are unaffected.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
watchOS: serialize op-queue drains (fixes frozen screenshot suite)
0696ca2 
On watchOS the op queue has two drainers: the CN1WatchHost pump (an
NSTimer on the main thread at ~30fps) and the screenshot path
(IOSNative screenshot__, which drains on the EDT before reading the
bitmap). Both bind and unbind the CG backend's single global active
context (CN1CGBeginFrame / CN1CGEndFrame). When the two drains overlap,
whichever finishes first NULLs the context while the other is still
executing its ops; every CN1CG op silently no-ops on a NULL context and
the ops were already consumed from the queue, so the rest of that frame
is lost for good.

On the capture-per-test CN1SS suite the collision recurs every test:
frames come out partially painted, degrade over a few tests and then
freeze entirely -- 167 consecutive tests delivered a byte-identical
stale frame on CI (build-ios-watch red, exit 15). Diagnosed via the
simulator console: CGContextSaveGState "invalid context 0x0" quadruplets
on the EDT at the exact capture timestamps while the main thread was
still happily drawing, with the bitmap context provably never NULL and
the app active for the whole run.

Serialize drawFrame behind a dedicated drain lock (snapshot, execute and
present as one critical section). The nested @synchronized(self)
snapshot stays as-is for flushBuffer coherence, and presentFramebuffer's
main-queue hop is async so the pump thread waiting on the lock cannot
deadlock. After the fix the previously frozen tests render distinct
frames again and the first formerly-stuck test matches its committed
golden byte-for-byte.

The race is latent on master too; the heavier themed paints on this
branch widened the drain window enough to make the collision
near-certain instead of rare.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the iOS GL graphics-draw-gradient golden for the y-offset fix
e331e08 
The DrawGradient CTM fix moves the on-screen gradients into the
correct sampling window: the fillRectRadialGradient hotspot is now
centered as requested (was pinned to the rect's top edge) and the
vertical fillLinearGradient spans its full rect (was starting
half-faded and running out of gradient before the bottom). The
mutable-image quadrants are unchanged, as expected.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Refresh 42 watchOS goldens after the drain fix unfroze the suite
305ca23 
Every prior branch watch run froze mid-suite (see the drain-lock fix),
so the branch's legitimate render churn never reached the watch golden
set. With the freeze fixed the suite delivers 216 distinct frames again
(byte-identical between local and CI runs) and 42 differ from the stale
goldens, in three understood buckets:

- The *Theme tests and pickers: the iOS Modern native-theme work
  (glass toolbar/tabs/dialog, switch/slider/checkbox tuning) rendered
  through the watch CG backend.
- graphics-{draw-gradient,scale,affine-scale}-direct: the 2012
  fillLinearGradientGlobal axis fix. The direct variants now match the
  orientation the mutable-image variants (which never had the swapped
  axis) always showed. The radial ellipses remain invisible on watch --
  the CG alpha-mask fill has never consulted RadialGradientPaint, same
  as the previous goldens.
- graphics-partial-flush-clip-escape: serialized drains change which
  mid-repaint state the capture catches; the 12-row difference at the
  bottom edge is deterministic (local and CI captures are
  byte-identical).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
watchOS: take the screenshot bitmap read under the drain lock
ea6c749 
The CN1SS capture path drained the op queue and then read the CG
bitmap (CGBitmapContextCreateImage) outside the drain lock, so the
30fps pump could be mid-drain drawing into the same context during the
read. Under that contention CGBitmapContextCreateImage intermittently
returns nil, which the harness turns into a 1x1 placeholder screenshot
-- a random image-variant graphics test failed the watch gate on
roughly every other CI run. (The old drain race masked this: a frozen
pump never contended with the reader.)

Expose the drain lock through CN1WatchDrainLockObject() and hold it in
screenshot__ around drain + snapshot. @synchronized is reentrant so the
inner drawFrame's own locking is unaffected.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Android M3 Tabs to 92/95: equal cells, 14px labels, bar height
0f7945c 
Tuned against the stock-M3 TabLayout golden (Tabs light 83.9 -> 92.3,
dark 90.7 -> 95.2):

- tabsEqualWidthBool: tabsGridBool alone leaves the tab row scrollable,
  and a scrollable grid sizes every cell to the WIDEST tab -- the three
  tab centers drifted up to 12px off the native fixed-tab thirds. The
  non-scrolling grid divides the row exactly like TabLayout.
- Labels at 2.25mm (14px = M3 labelLarge at the 160dpi contract; the
  old 2.5mm rendered 15-16px glyphs) with an explicit 1mm icon-gap to
  reproduce TabLayout's icon-to-label spacing; the active tab keeps
  bold as the closest stand-in for native's medium weight.
- Bottom padding 2.1mm -> 1.75mm: the bar's bottom edge sat 2px below
  TabLayout's, which cost two full-width rows of diff in both
  appearances.

Also make xvfb-run conditional in build-android-{app,port}.sh so the
local (macOS) fidelity loop can run the same chain CI does.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Android M3 Dialog to ~96: command row metrics vs the native alert
e9daf14 
Dialog dark 89.9 -> 95.8, light 92.5 -> 95.7 against the AlertDialog
golden. The CN1 card rendered 26px wider and 15px shorter than native:

- DialogButton: 14sp label (2.25mm) with 12dp horizontal padding --
  the 2.5mm/2.5mm text buttons pushed the command row ~20px wide.
  Restated in the dark override (dark styles replace wholesale).
- DialogCommandArea: 24dp top padding places the action row the M3
  distance under the supporting text; its absence shortened the card.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog
Merge remote-tracking branch 'origin/master' into native-theme-fideli…
60818d3 
…ty-suite

# Conflicts:
#	CodenameOne/src/com/codename1/ui/plaf/Style.java
@shai-almog @claude
Accept Android Tabs/Dialog golden churn; drop the Since marker
89e5588 
The M3 Tabs and Dialog tuning (equal-width cells, 14px labels, command
row metrics) legitimately changes the four *Theme screenshots on the
Android port; renders verified against the previews (evenly divided tab
row, correctly spaced dark dialog card).

Also remove the LETTER_SPACING "Since" doc section: the merge-conflict
resolution resurrected a block master had deleted, and the new
check-since-tags gate rejects since markers in API docs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the JS-port Tabs/Dialog golden churn from the M3 tuning
14682a5 
Same four *Theme screenshots as the Android port, rendered through the
JavaScript port; verified equal-width tab cells and the retuned dialog
command row. The fifth diff in that run (graphics-draw-image-rect
delivering a mostly blank frame) is the JS async-render capture flake,
not accepted -- the rerun re-renders it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept the Linux GTK Tabs/Dialog golden churn from the M3 tuning
27bc384 
The Linux port stages AndroidMaterialTheme.res as its native theme, so
the equal-width tab cells and dialog command-row metrics churn the same
six screenshots on both arches (Tabs/Dialog themes plus the
TabsAnimatedIndicator and TabsBehavior renders of the same bar).
Verified the x64 render: evenly divided tab row, correct labels and
indicator.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
iOS glass round: toolbar items/insets, dark lens polarity, frost levels
021c542 
Fidelity vs the iOS 26 golden set: Toolbar dark 72.4 -> 87.2, light
78.7 -> 87.0, Tabs dark 80.9 -> 84.2, Tabs light 84.0 -> 85.3, and the
FlatButton family +1.3-2.1 (suite mean 92.9).

- Tabs dark rendered the selection drop as a SOLID accent pill: the
  lens's dark->accent keying is a light-mode premise (dark glyphs over
  light frost turn blue); on a dark bar everything under the drop is
  dark so the whole capsule flooded. The lens now keeps only its
  magnify/aberration optics on dark bars and the selected glyph carries
  the accent directly (theme TabIcon.selected + the fidelity renderer).
- Toolbar: the nav-bar circles sat flush at the screen edge; native
  insets the items ~2.6mm (leading/trailing margins, restated in the
  dark overrides). Removed the bar-wide backdrop blur + dark tint --
  the native iOS 26 bar is effectively invisible, only the floating
  items and title sit on the backdrop; the old blur painted a frost
  band the reference does not have. Dark circles darkened to the
  measured hue-preserving fill.
- Frost levels sampled against the golden over the shared backdrop:
  the tab pill is ~22% white over a LIGHTLY blurred local backdrop
  (was 0.82/blur40, which washed and cross-mixed colours); FlatButton's
  clearGlass fill is nearly invisible (0.32 -> 0.16) with the native
  2.1mm text inset.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept iOS + Mac golden churn from the glass tuning round
e5790a8 
The toolbar item insets, removed bar-wide frost, dark lens polarity and
frost-level changes legitimately churn every themed screenshot with a
toolbar/tabs/flat-button surface: 4 on the iOS simulator suite
(ButtonTheme_dark, TabsTheme_light, ToolbarTheme light+dark) and 32 on
the Mac native suite. Spot-verified: the dark tab bar renders the blue
selected glyph on a subtle capsule (no solid accent pill), the toolbar
strip is band-free with inset circular items, and the button gallery's
Flat variant shows the near-invisible clearGlass fill.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@shai-almog @claude
Accept Metal/tvOS/watchOS golden churn from the glass tuning round
e545a01 
Same theme-wide churn as the iOS + Mac sets: 32 themed screenshots on
the Metal and tvOS suites and 4 on watchOS pick up the toolbar item
insets, removed bar-wide frost, dark lens polarity and measured frost
levels. Spot-verified the Metal dark tab bar (blue selected glyph on a
subtle capsule inside the dark pill). Only the gate-flagged tests were
accepted; sub-threshold delivered renders were restored to keep the
byte-identical baseline clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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