I fiddled with my UI today and here's what it looks like:
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Compared to the "velious" ui I added:
1. Custom tracking window that allows me to see 11 items in the space the previous one only showed 4
2. Song/spell titles on the casting window
3. A smaller target window that better fits my ui setup and doesn't have an eyesore of a title
4. Horizontal hotbars, my favorite!