>They are remincent of what is in Gimp right now with it's dialog but, I >like these better because you see which color you will get before you move >the slider. The color is actually on the slider and it updates the colors >of the other sliders as you move one slider. Photoshop has the same dialog, but better (can choose colour space between RGB, CMYK, HSV etc), and a separate colour selection field.
