TODO:

• ( ) invert the line drawing direction from top to bottom to bottom to top
• ( ) use tweetRandom instead of Math.random
• (x) paint on a 1024 x 1024 px canvas, buffer remains the same size
• (x) quadrangles / buffers get an own position
• ( ) more quadrangles?
• ( ) brush stroke animation painting (therefore undo interval?)
• ( ) documentation Deer-Klee.md