Hit space to Change color effect.
1 is pen width 1
2 is pen width 2
3 is pen width 3
4 is pen width 4
5 is pen width 5
6 is pen width 6
7 is pen width 7
8 is pen width 8
9 is pen width 9
Notes & Credits
D key is pen down
U key is pen up
Press C and see what happens
