Red-1 Orange-2 Yellow-3 Lime-4 Green-5 Light Blue-6 Blue-7 Purple-8 Black-9 White-0 < for rotating clockwise, and > for counterclockwise. ^ to switch blocks. Space key to place/break the block. V to view the stage w/o the brush. E to edit with the brush. WASD to move the block. F to fix the block, if it's misaligned.
Fullscreen breaks it :/
