My feeling is that there's some reason why this wasn't done that I'm not aware of, but could this be fixed by simply adding the trough images to the buttons in Ambiance/Radiance's unity folder? In that case, this could be a light-themes bug and not a Unity bug.
My feeling is that there's some reason why this wasn't done that I'm not aware of, but could this be fixed by simply adding the trough images to the buttons in Ambiance/Radiance's unity folder? In that case, this could be a light-themes bug and not a Unity bug.