Fork https://mods.factorio.com/mod/automatic-train-and-station-painter has a function to color stations too. As I can see there is no problem of integrating this function to a base mod (if I understood code correctly). I'd do it myself but I don't want to create third mod with almost the same code and almost the same function.

Please, consider updating your mod with to paint stations too especially when there is ready-to-use code for this.

Thank you!

Hey Russ, I'm the author of the previous fork and have since deprecated it. I created a standalone Automatic Station Painter that doesn't require Automatic Train Painter, but obviously benefits from it.