Since 3.0.0 release, Krita won't use the color scheme set on KDE's "Settings" - nor won't let you select a custom/user color scheme that wasn't shipped with KDE. For example, if you downloaded another color scheme from KDE's "Settings" and you set it so KDE will use it among KDE apps, Krita won't use it - even it won't list it under Krita -> Settings -> Themes so you can pick it from there. That will happen if you created a custom KDE color scheme and place it under ~/.kde4/share/apps/color-schemes/ (Frameworks 5 is still using that folder to load/save custom color schemes).
Your observation is correct, but it is not a bug, but intentional. We had to fork part of a KDE frameworks library to
make it portable across operating systems, and this was one of the things that got cut.
Sorry, but though I barely understand the technical reasons behind, I don't get why you're marking this as "wontfix" nor why you're saying "this isn't a bug but a feature". Many other "cross platform" Non-KDE-but-Qt apps will obey KDE color schemes (say Scribus, VLC, Otter...) and you're doing efforts to make Krita integrated with other DE/OS. Why are you leaving KDE behind on this? I mean, at least the option to select those user color schemes would be great.
(In reply to acidrums4 from comment #0) > Since 3.0.0 release, Krita won't use the color scheme set on KDE's > "Settings" - nor won't let you select a custom/user color scheme that wasn't > shipped with KDE. > > For example, if you downloaded another color scheme from KDE's "Settings" > and you set it so KDE will use it among KDE apps, Krita won't use it - even > it won't list it under Krita -> Settings -> Themes so you can pick it from > there. That will happen if you created a custom KDE color scheme and place > it under ~/.kde4/share/apps/color-schemes/ (Frameworks 5 is still using that > folder to load/save custom color schemes). For the time been you can simply do it manually, copy the color schemes from KDE directory into Krita's ~/.local/share/krita/color-schemes, that will give you the missing options on Krita itself.