This feedback is for Name and Description Computation 1.2 Editor's Draft: https://w3c.github.io/accname/.

In section 4.3.2 F, the ::before and ::after reference is out of date: https://www.w3.org/TR/CSS2/generate.html#before-after-content.

I believe this is the latest CSS Selectors Level 3 reference for ::after/::before: https://www.w3.org/TR/selectors-3/#gen-content.