Looks good so far.
Wasn't able to test it yet but on first glance I'd say there is missing a simple way to use the skills/aura icon/texture itsself without having to browse all icons from that "skill tree" :-)
You are able to get the texture from the skill/ability name as far as I know.
At least for player buffs this works by using the events for buffs you'll find in the Wiki -> Events.
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