On-screen colour faders are available on FLX consoles only, and allow you to mix in RGB, CMY or HSV, irrespective of whether your fixtures mix in RGB, RGBW or CMY.
There are two options available for this view – “Static” and “Active”.
In “static” mode, the faders control RGB (Red, Green and Blue), CMY (Cyan, Magenta and Yellow) and HSV (Hue, Saturation and Value). Moving one fader automatically updates the others, meaning it doesn’t matter how your physical fixture works, as long as it has colour mixing you can use any of these methods to control its colour.
“Active” mode (pictured) works in exactly the same way, but the background colour automatically updates to show you the colour you’ll end up at by moving that fader, rather than just the colour you’re adding in or removing.