Dynmap/Dynmap-Worldguard customization

hey, I'm trying to make my server's dynmap look a little nicer and want to change the "infowindow" of worldguard regions.

currently regions show an empty () parentheses even if there is no region parent, and shows "owners:" even if there are no owners, and I want to change that.

is there a way to add per region info Windows or similar?

any plugins to customize dynmap?