In Firefox (but no other gtk2 applications I've tried), the scrollbars are drawn in slightly-but-jarringly incorrect colours.
With the Breeze colourscheme, the area is RGB #D6D8DB, the slot is #BDC3C7 and the slider #74757A. The expected colours as used by other applications are #EFF0F1, #B7B6BB, #74777B respectively.
Screenshot - the background of planetkde.org is the expected scrollbar colour.
Firefox in foreground, Qupzilla behind.
http://i.imgur.com/zSOGNLO.png
In Firefox (but no other gtk2 applications I've tried), the scrollbars are drawn in slightly-but-jarringly incorrect colours.
With the Breeze colourscheme, the area is RGB #D6D8DB, the slot is #BDC3C7 and the slider #74757A. The expected colours as used by other applications are #EFF0F1, #B7B6BB, #74777B respectively.
Screenshot - the background of planetkde.org is the expected scrollbar colour. Firefox in foreground, Qupzilla behind. http://i.imgur.com/zSOGNLO.png