(QT): System themes are not accurately detected on some platforms
Mostly applies to windows users from my experience of it. After some discussion about it on Discord, priestofillunibi shared this with us: https://www.qt.io/blog/dark-mode-on-windows-11-with-qt-6.5 wherein QT's somewhat longwinded explanation is effectively to just use their fusion style instead of whatever the system provides. I did confirm that this works with the construction set on Windows. Further explanation to come in the MR