I tried your suggestion: it turns out that the code is applied
correctly, but some how it tiles weirdly.
When I shorten the width, I see it move more to the left. When I add more width it moves to the right. Really weird. And no I haven't changed any dimensions with code. Just
<Mapping ArtAssetID="progress_overlay_background_right" FileName="misc\progress_overlay_background_right.t ga"></Mapping>
EDIT: Okay it turns out to be that the dimension of my graphics file wasn't similar to the original
Was too short. Got it all settled now. Need to do a few more graphics for the Quest Log now, all the added new stuff, and then I'll publish an update.
Btw, Kuvasie, you planning on updating your Spirit of Elfwood?