Thanks! So the idea is to use colour to separate numbers from the rest of the map, right? It probably won't help with multicoloured maps, but then a user just needs to switch to a different style. I'll try implementing it.
Okay fair enough. Perhaps this idea could be implemented on those other projects down the road too, as an option. Would be useful if someone wants a D&D session that involves exploring or moving through a city or village etc.