This one is a bit more difficult than something like REI compat, but it would be nice if LegendaryTooltips could override the default WTHIT tooltip background. I tried to make my own add-on mod that would do it, but trying to call the tooltip rendering stuff from a secondary mod is kind of difficult. If direct WTHIT support isn't something you want to add to the mod directly, then it would also be nice to have some sort of easy API for rendering the full tooltip background (without the text) from another mod. This would allow other mods to hook in to LegendaryTooltips and use the nicer looking tooltips for things.

Thanks!