Work on the stuff
Attemp to fix it.
The icon does change on the 3d item in your hand, however it doesnt work in GUIs. nut sure what to override here
That didnt work anyways
in the end i used metadata for the texture change, but it doesnt work in creative mode. not sure if ItemStack.setItemDamage(int) is disbled in creative, but it definitely does look like it.
Finish location_card_icons