Custom colors breaks notification panel

[eugenesan]

Enabling custom colors (which is the default) breaks notification panel in TabUI (250).
There are two manifestations of the problem:

1. Notification panel header is empty. Sometimes applying default colors profile or disabling custom colors helps, but problem tends to return.
2. Notification panel header is empty and events list not shown.

Above noticed in TabUI250 (in 220 it's working), but empty notifications header also observed in Phone mode.