Bug: Toolbar background is always white.
How to check it:
create a custom ToolBar in TaskBar (right click on TaskBar->Toolbars->New Toolbar).
We get a new toolbar where files are displayed.
But its background is white, although all Windows is dark.
attached screenshot: https://ibb.co/sVfg57D
Program versions: Windows 11 (ver 10.0.22621.382) + StartAllBack v3.7.3