Just press that flag and choose your colors! If you have Rainbow on, it will override and hide Colour, and if you have Black on it will override and hide Colour and Rainbow. For White/Black Background, set it to 1 for white, 2 for black and 0 for another colour.
For those of you who don't know, Sine is a mathematical function and its values range from minus one to plus one (creating a wavy graph) so all I had to do was create a variable to simulate the x-value and multiply its Sine by 180.
