Color source 4wrd

Hey, 

I'm looking for some help to create a 2.9 friendly custom fixture to properly operate a color source 4wrd. (Ion Classic, not rebuilt). I've been through the steps of creating a custome fixture, but I can's get the colours to line up correctly. I tried modifying a colorsource spot profile, but the yellow vs lime is causing issues. Grateful for any advice, Thanks!