Please check out this option check it, and see the Qt Fusion theme, please report back if you would like to be on by default in the next build. Note that for dark mode this setting does not make a difference as fusion mode is then always on.
I don't use dark mode so please tell me what sort of difference I would see with QT fusion theme box checked.
I already checked the marked box and don't really see much difference (no dark mode used) Perhaps the text looks a bit clearer and bigger? (although that might be because I am looking too hard !)