Small request which I'd love, but I understand if it's not doable:
Could you possibly create some simple textures for the colored bar backgrounds of the powers? For instance, nature at-wills wouldn't just be green, they'd be green with a leaf pattern. Divine at-wills could have an angelic feather texture in the green bar. Etc.
I think
WotC really dropped the ball by just having flat bars of color. Some manner of texture would look much more elegant, I believe (and would help you avoid any potential claims of you stealing their 'trade dress').
Like I said, I doubt it's feasible financially, but I'd love if it you did it.
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Ryan "RangerWickett" Nock 
Author of the War of the Burning Sky
serialized novel, free at EN World. Part Two, The Irons Have Tolled, now available.
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