adwaita-qt compatibility with color schemes broken

[ZechariahB]

Both adwaita-qt5 and adwaita-qt6 have an issue with hard-coded colors affecting ability to use color schemes in qt5ct and qt6ct. I used these packages adwaita-qt5 and adwaita-qt6 from the repos provided in Fedora 37. (1.4.2-1.fc37)

Buttons in adwaita-qt5 are not colorable. On top of this, adwaita-qt6 is near impossible to color except for a few locations. Always reproducible with any color scheme created, the default adwaita colors are used instead of colors from the color scheme.

A project called Gradience To Qt Theme Converter, now becoming a plugin for Gradience, currently relies on generating color schemes for adwaita-qt to give consistent colored apps.

[frere-jacques]

This had cost me several minutes trying to understand where this brown button comes from. I want to add that this blue accent color that is present in underlines like tab 1 or in activated radios etc. is not affected by color palette too. @ZechariahB if I only had known this converter some hours before!