Panel changing color with third-party theme and "Auto hide panel w bookmarks" enabled

[Shanti09]

This inherits system settings.
You can change it with this tool:
https://github.com/Tatsu-syo/noMeiryoUI/releases
We have not tested, maybe "Title bar" is the target option.

Thank you, looks not perfect, some system fonts changed as well, but fonts of the tabs look better