gfx:
new wood/tree blocks
snake:
revive cubes now slowly go towards your ghost
shift:
like a bunch of levels
bugfixes:
shift: brand new feature! each level has a background assigned! (this was broken for a while....?)
shift: custom tab behaves correctly when empty
shift: custom tab doesnt require game restart to update
shift: only levels of valid size are shown
minimap trails more performant