I often find myself using colors to visualize my geometry from GH in Rhino. I use colors to distinguish between elements, understand how trees are organized etc.
The only way to have geometry visualized with colors is with the Custom Preview component. If you have many layers of geometry superimposed, most times you need to turn all other components off and just let the Custom Preview on. After that, I have no practical way of turning on again the components I turned off.
I think a quick solution to this could be to have the option on the Custom Preview component to, when selected, display current colors or display the document preview settings color.
This way, you will be able to only look at the selected Custom Preview component, but instead of having it monochromatic (green by default), it would display the colors that are inputted into it.
I hope this is a reasonable request.