text: WIDTH = 1250
  HEIGHT = 750
  NODE_SIZE = 25
  PADDING = NODE_SIZE * 2
  ROWS = (HEIGHT - 2 * PADDING) // NODE_SIZE
  COLUMNS = (WIDTH - 2 * PADDING) // NODE_SIZE
  BORDER = (0x00, 0x7e, 0xa7)
  SLEEP_SPEEP = 0.1 # amount of miliseconds to wait for animation
  