Could we have support to show regions on Dynmap?

Can it be like how its done on your (Xaero) map mod?
If you need an example on how to use their APIs try looking at the Minecraft Transit Railway mod, they use Dynmap in a few places even for Forge and Fabric!

That's not something to ask me about. I do not use or develop anything for Dynmap, or have interest in starting. It doesn't have to be me. I have plenty to do in my own map mods.