Change Details

The "standard"/fallback Fusion style for Qt uses QStyleHelper::backgroundColor() to determine if the scrollbar is drawn on has a dark background. QStyleHelper::backgroundColor() handles scrollbars differently from everything else, and tries to get the palette of the parent widget, and then gets the QPalette::Base color of that (that probably makes sense for someone other than me). I think the scrollbar in the Qt Fusion style has way too low contrast in the first place, but this way we should at least invoke the right code in qfusionstyle, so it can't blame konsole for it.

The "standard"/fallback Fusion style for Qt uses QStyleHelper::backgroundColor() to determine if the scrollbar is drawn on has a dark background. QStyleHelper::backgroundColor() handles scrollbars differently from everything else, and tries to get the palette of the parent widget, and then gets the QPalette::Base color of that (that probably makes sense for someone other than me). I think the scrollbar in the Qt Fusion style has way too low contrast in the first place, but this way we should at least invoke the right code in qfusionstyle, so it can't blame konsole for it.

The "standard"/fallback Fusion style for Qt uses QStyleHelper::backgroundColor() to determine if the the scrollbar is drawn on has a dark background. QStyleHelper::backgroundColor() handles scrollbars differently from everything else, QStyleHelper::backgroundColor() handles scrollbars diffeand tries to get the palette of the parently from everything else widget, and tries to get the palette of the parent widget, and then gets the QPalette::Base color of that (that probably makes sense for someone other than me). I think the scrollbar in the Qt Fusion style has way too too low contrast in the first place, but this way we should at least invoke the right code in qfusionstyle, so it can't blame konsole for it.