XP tooltip missing xp value modifiers

[Lywellyn]

Normally, if you hovered over the XP bar, the tooltip would tell you if you were getting XP modifiers such as:

Double experience for having Vitality
Extra experience for being mentored
Negative experience for being a mentor

But I can't find that tooltip anywhere. Hovering over the main XP display just tells me how to switch amongst the different values, and hovering over the secondary display changes it to show the Run value, regen mods, and status.

I know that the main XP display shows your Vitality, and while that's above 0.0% you're getting double xp, so that's fine, but when I'm a mentor (or being mentored), I'd like to know how much extra or negative experience I'm getting.

Also, as a side note, there's no indicator to show when Vitality would run out like the Default UI.