Make Party Member Icons for leaving players 'fade' away after 5 sec instead of disappear instantly

I appreciate other little details that have been implemented thus far with the Atlas of Worlds release, so why not improve the Party Member Icons for leaving players a little more with a little more detail?

Currently, when a Party Member leaves a Party, their Party Member Icon is crossed out with a Red X for 10 seconds, and then it disappears instantly.

It would look much better if the Party Member Icons of leaving players stay for the first 5 seconds, and then begin to fade away for the remaining 5 seconds.

Thank you for looking into this.
HeavyMetalGear