The skill modifier Tainted Power changes 100% Aether damage to Chaos & 100% Lightning damage to Vitality.
However, the tooltip for Disintegration’s lightning damage does not change to vitality. Is that supposed to be the case? Does Tainted Power affect Disintegration as well?
In the case of transmuters, I think skill modifier tooltips aren’t affected but if the conversion is 100%, the base skill tooltip should be affected. That said it’s much easier to see your dmg distribution on the character sheet.