def []=(x, y, color)
			check_coords(x, y)
			@pixels[x][y] = color
			@hat[map_coords(x, y)] = color
		end
def []=(x, y, color)
			check_coords(x, y)
			@pixels[x][y] = color
			@hat[map_coords(x, y)] = color
		end
Set given pixel identified by +x+, +y+ to +color+

 See +set+ for a method that takes individual +r+, +g+, +b+
 components.

 You still have to call +show+ to make the changes visible.