text: from displayarray import display
  import math as m
  from examples.videos import test_video
  
  
  def forest_color(arr):
      forest_color.i += 1
      arr[..., 0] = (
          m.sin(forest_color.i * (2 * m.pi) * 0.4 / 360) * 255 + arr[..., 0]
      ) % 255
      arr[..., 1] = (
          m.sin((forest_color.i * (2 * m.pi) * 0.5 + 45) / 360) * 255 + arr[..., 1]
      ) % 255
      arr[..., 2] = (
          m.cos(forest_color.i * (2 * m.pi) * 0.3 / 360) * 255 + arr[..., 2]
      ) % 255
  
  
  forest_color.i = 0
  
  display(test_video, callbacks=forest_color, blocking=True, fps_limit=120)
  