I want to say I made it in Clip Studio. But I can't recall if that is what I was using when I made the map, it's what I use now for drawing. Either way I made it with a drawing program, all I really need for it is the ability to adjust hue and a brush to clean things up.
Also until this message is deleted all characters were designed by me byt drawn by @Alabaster_fish on twitter.
I will tag each of them individually eventually, but ive only uploaded ones drawn by her as of this point.