Don't do an animation on the information panel
The information panel does a scaling animation when switching between files. It does not completely make sense because the pixmap passes immediately to the new one, it just animates the scale between the two which just looks glitchy. the effect is particularly visible when switching between a normal folder and one that has thumbnails overlayed on top: the two folder icons appear the same size, but still a weird animation occurs when going from one to another.
Also, the rest of the text of the information panel does change immediately. ideally perhaps some sort of fading animation could make sense, but only if everything in that panel faded together, only the icon fading with the text that is already the "new" one doesn't make much sense
Edited by Marco Martin