Cleanup of scroller drawing in 2D windows. Before: http://download.blender.org/institute/rt11.jpg After: http://download.blender.org/institute/rt12.jpg Will add 'zoom' widget circles later, as mockupped here: http://www.reynish.com/files/blender25/fcurve_scrollbar.png Also note the scale values are inside scroller; drawing it on top conflicts with current frame item and markers. Currently scroller disappear entirely when view is total. For Joshua: To make sliders behave nicely, the boundbox (v2d->tot) has to be refreshed on each change. I've added it in graph drawing now, but it could be notifier based I guess... not sure what the correct anim api call would be. Can discuss tomorrow! On todo: Layout config hints so people can make scroller positions swap.