I think I'm trying to achieve this same effect. I kinda got it working by modifying the code @OSUblake provided in his answer to the original question. But there is a problem I can't figure out how to fix. See as you hover over the icons the width changes correctly, but while the icons seem to scale correctly on the left side of the toolbar they scale incorrectly on the right side, im guessing because of the width of the toolbar changing and certain vallues not getting updated.
This is me hovering on the left side of the toolbar which seems to work correctly:
And this is me hovering on the right side of the toolbar where you can see the icons to the right side of the mouse scale too early and are too large because of this:
Any help is greatly appreciated
https://codepen.io/jo_orin/pen/QWJZerM
