Makes plants appear snowy

Adds hue-shifting to the grayscale foliage textures. Among other things.

Makes menu buttons smoother and their bevels thicker.

Makes plants orange and yellow, as if it were Autumn.

Makes the buttons on the menus look even more like Stone.

Removes swamp music from non-swamp biomes, among other fixes.

Removes swamp music from non-swamp biomes, among other fixes.