Cropping a GIF should not make it bigger. Ours did, and not by a little: a 288-frame Foucault pendulum went from 1074 KB in to 4881 KB out, and a 70-frame gun turret went 116 KB to 1232 KB. That is 455% and 1062%.
Source: [Dev.to](https://dev.to/textmachine/a-gif-re-encode-made-the-file-45x-bigger-interframe-differencing-fixed-it-5gnb)