code: def clear_values(self, red=0.0, green=0.0, blue=0.0, alpha=0.0, depth=1.0):
          
          self.clear_color = (red, green, blue, alpha)
          self.clear_depth = depth
docs: Sets the clear values for the window buffer.
  
          Args:
              red (float): red compoent
              green (float): green compoent
              blue (float): blue compoent
              alpha (float): alpha compoent
              depth (float): depth value