"The transparency layer in window_pieces02.tga for the spell gem holder was modified, custom UIs may need to adjust for this change.
This goes along with a change to the layer order for spell-gems where previously the colored gem-holder was rendered behind the spell image. Now the gem holder with its center set to transparent is rendered on top of the buff image to ensure a consistent outline."
Managed to get mine working again. Had to go and edit areas of the .tga's to be transparent instead of just being black. Quite the PITA.