Can we use RIR to add Value to Color Scheme

Hi all, I have a few color scheme values in Rhino & Grasshopper, I wonder is there a way to add them into an existing color scheme?

I thought Inspect element and element parameter may achieve this. But what can I feed into the Graphical Element? How can I get the Color Scheme into the Graphical Element component?

Many thanks

@Jack_Zeng Its possible through the Revit API not through standard Components. You can only get the available schemas but not their definition.

I will give it a shot, thanks Muhammad!