[bijection]

I was just starting a comment on this but you beat me to it! I believe

  contain: strict;

on the parent element would have been sufficient here.

[webstrand]

I tested `contain: strict` on their color changing SVG and didn't see any difference. Profiler says it's still doing layout.

[DrammBA]

You tried the fix for height recalculation on the SVG that is changing fill and stroke and it didn't fix the issue? I wonder why

[jonny_eh]

A lot of armchair suggestions here, but no benchmarks provided. Thanks for actually testing!