yea i thought the same thing but native huds don't have some kind of trigger that would let them know the minimap has moved
i suppose maybe it could be done by saving the minimap location in a var and then watch to see if it's changed
or attaching to the hud move functions to check
there's actually probably a few ways to trick it into working but i'm pretty rusty these days and not sure i want to put in that much effort
scriptGL it'd be easy peasy lemon squeezy tho, get pixel location and size of minimap and draw your .png based on those
edit: looks like u have scriptGL stuff in your config, i'll whip something up later for ya