AO-Skintool's purpose was to replace the current/old scripts and myriad of tools at the time (2001-2006) that existed to extract and compile the AO GUI skin, and planet map. It is able to extract just about all skins and planetmap images be it old gui/new. RK and SL. It's able to do skin file extraction/compiling, planetmap extraction/compiling. It is small, fast, simple, easy. It does what it does and that's it! Uses OptiPNG to optimize the size of PNG files to a minimum filesize (optional choice during compiling of skin/maps).
You can now get the tool from http://skuldwyrm.no/gsp/tools/ao_skintool/ or if you prefer HTTPS from https://skuldwyrm.no/gsp/tools/ao_skintool/