similar to sequence editor. --> http://mke3.net/blender/devel/2.5/color_balance_node.jpg Also added 0 key (zero key) shortcut when mouse is over a button, to reset it to its default value. Same as the RMB menu ->Reset to Default, except for color wheels, it only resets the hue/sat/value components that that widget affects. Peter/Xavier: The existing color balance code can generate NaNs (fractional power of a negative), which causes havoc along the image pipeline. I added a check in the node code to prevent this. Still plenty of potential for lots of better colour correction tools in the compositor, just needs time...