I have the mod working correctly in my bags/bank. Attached #1:Notice, the orange border around the glyph, its a druid glyph.
However, I'm having trouble correctly setting the overlay in the guild bank. I believe this is due to the fact that the guild bank columns are rendered in their entirety as one large graphic?
I'm able to create a highlight, but it appears behind the item. Currently I'm using GuildBankColum#Button# as the reference point for the overlay, I'm not certain if this is correct. Attached #2: Notice the red highlighting/border on the right-most slot, it should also be similiar to #1 but doens't appear on top.
If anyone has any ideas on how to address this I'd love to hear 'em. I'm almost there, but not quite.
I did look at his code as well, he has it working in gbanks but his code is a lot more callbacks and its a bit more difficult to figure out how it works properly, from what I can tell we do the same thing, but I'm uncertain.