While an RGB or HSL (Hue, saturation, luminosity) slider would present a tremendous amount of freedom, it might get under the skin of continuity purist........at LucasArts. There also lies in some extra work needed for all the sabers to look good with a full range of colors to pick from (the RGB slider with JediMOD for JK2 had a few problems, like having it appear to be a row of dots instead of a smooth line).