Hi, A while back I asked for some guidance in getting the Fusion style to inherit KStyle. Apparently there was no real interest in doing such a thing so in the end I rolled my own implementation, using a private, adapted copy of the KStyle class. Contrary to that I thought, you cannot override the built-in Fusion style so I had to name my "new" style "KFusion", a pun on "KDE Fusion" and "confusion" (though the style will load as "Fusion" too, when Qt was built without the internal style). github:RJVB/KFusion Visible differences: - better KDE integration through (optional) use of KStyle - respects the ButtonsHaveIcons setting - no double document-modified indicators on Mac - no hardcoded highlight colour on Mac (the highlight/selection colour is about the only configurable colour there) Feel free to use and/or bundle with binaries that use the Fusion style in order to have an acceptable, consistent cross-platform look and feel. R.