Hello hey!
I upgraded my Flatpak apps on OpenSUSE today and i noticed Haruna now uses default dark breeze colour scheme!! So did KDEnlive, but on that i can manually choose the colour scheme easily. With Haruna, there is no setting to change the colour scheme.
I wanted to report it as a bug but i am not sure what software is the culprit.
I also tried to install Kvantum but it did nothing.