Gotcha. I don't think these colours should be used for any old state. Basically just for situations where India is divided into two main empires, one Hindu and one Muslim (which, you could argue, is modern OTL). But I don't want to see situations where there are a bajillion Indian states and people colour in one of them just to have an excuse to use the colour.
AFAIK, India tends to see situations where an empire rises, falls and then another rises rather than one overthrowing another as you see with Chinese dynasties, so I don't think there's quite so much potential for ambiguity. However I appreciate we won't know for certain until we try it out on maps. As I say, though, a similar system was used on Roberto's OTL maps
without problems.
I originally worried about that (and also with the dark green Chinese colour), but looking on maps where people used this proposed Russian colour, it's actually OK.
And I wonder what an
"Alot of Problems" would look like.