Code review comment for lp://qastaging/~unity-team/unity/unity.fix-901164

bg-color tinting fix is in http://people.canonical.com/~mmueller/after-901164-3.png

The padding fix comes after this was approved and merged, so there's no conflict with the wide-icon fixes Gord needs to do... and which should be based on this branch being in trunk rather then current trunk.