[WHATEVER]unloading a .png?

[MisterN]

since theres unload commands for everything, is there an unload command for png? i dont care what of the three has it. i would just like to know if:
1. does it exist?
2. is it on fenix?
3. if not, is there a way of unloading .png's at all? (pngs get loaded into the dreamcasts ram).
4. what would be a similar method of doing so?

[SplinterGU]

load_png load the graphic in memory as a map... you can use unload_map for unload it...

this works in fenix too.