 There is a limited ability to transition "live" between mixed colours - although some transitions cannot be accomplished without passing through the clear center frame.Finally, there are "true" CYM mixing scrollers that utilize three independently controlled gel strings - namely, the "ColorFader™" system manufactured by Morpheus Lights of Las Vegas, NV, USA.Independent control of the gel strings permits users to cross-fade "from any color, to any color, anytime™" directly (without going through undesired colours as on a single or double string colour changer).