Drawable.Click()
Renames Colour to BackgroundColour instead.
# Conflicts: # osu.Game/Beatmaps/Drawables/BeatmapPanel.cs # osu.Game/Graphics/UserInterface/BackButton.cs # osu.Game/Screens/Play/KeyCounter.cs
Which should allow you to change the color palette in the future for skinning purposes.
I didn't move _every_ color here, but most of them. The ones I left behind are mostly just shades of gray. Closes #126
Could alternatively done by shearing the entire button, but then you would need a positional x-offset depending on whether the anchor is top or bottom.