Make the game background less saturated.
Remove white pixels from the platform textures.
Tweak the platform textures.

Edges have been added to the ends of each platform, and the diagonal
lines in the texture have been made more smooth.
Change the pixels on the edges of the launcher's base.

It only looked good if the background was white, but it isn't.
Change the pixels on the edge of the death trap's texture.
Change the pixels on the edge of the ball's texture.
Change the menu background.
Merge remote-tracking branch 'jorenz/graphic-tweaks'