I was wondering what you meant by that, but you mean the effects examples i guess. Look, one should look at it like that. These are just examples. Pretty sure you can modify the individual functions to deal with RGBW easy enough, just not using the white is what the hack attempts to do, but for some of the routines the size of the variable may matter. You would anyway be using RGBW as RGB Leds, so you may as well just use RGB leds.