I’ve been trying out Linux distros and desktop environments these last few weeks and that reminded me of this topic. I wanted to see how beneficial it would be to run Krita in its natural environment, namely KDE Plasma. It turns out with a native package (I’m using the one from the default Debian 12.5 repository, which is 5.1.5, so fairly close to the latest version), Breeze is available in Settings > Styles along with Fusion. It gives active tabs a colored top border which makes them very easy to spot.
So that’s another take on the initial issue, but from my experience, it seems that only deb or rpm packages of Krita will let you select a Style that your system provides (at least, the Appimage - even running in KDE Plasma - and Windows versions only provide Fusion).
I was wondering, as a KDE app, why doesn’t Krita come packaged with Breeze instead of Fusion?