You're welcome! And I'm glad this is still noticed and useful to people.
As I wrote in the OP, credit is appreciated but not required, as this isn't a fully realized mod and more of a technical demonstration (the icon is also just adapted from vanilla, can't claim any artistic originality there). So absolutely, go ahead and use whatever you need.
It indeed is quite flexible, the only constraint probably being that it can only show one colour per province at a time. But it's the next best thing since we can't have truly moddable mapmodes still.
As I wrote in the OP, credit is appreciated but not required, as this isn't a fully realized mod and more of a technical demonstration (the icon is also just adapted from vanilla, can't claim any artistic originality there). So absolutely, go ahead and use whatever you need.
It indeed is quite flexible, the only constraint probably being that it can only show one colour per province at a time. But it's the next best thing since we can't have truly moddable mapmodes still.