I usually get very angry at the excessive use of animations everywhere, so I expected that this would give me a nice hit of righteous indignation to top off my afternoon. But this is a fantastic use of animation. In a UI like this, animation is great to helpfully draw your attention to where it’s needed and give you some indication of why you should look there. Very nicely done!
edit: this is the actively maintained fork https://canvascommons.io/