added comments and use gdk_rectangle_contains for scrollbar arrows hover effect. Note that it does not work so well right now ...
added comments and use gdk_rectangle_contains for scrollbar arrows hover effect.
Note that it does not work so well right now ...

KDE/oxygen-gtk,blueshell-next/carbon-gtk,KDE/oxygen-gtk,blueshell-next/carbon-gtk,blue-shell/carbon-gtk,blue-shell/carbon-gtk