@Meyerweb , while reading the overview document I discovered that their "clever" CSS trick to underline links in a nonstandard way results in invisible underlines when viewed in forced dark mode on all browsers I tested. Forced dark mode (light text on dark background) is an essential accessibility feature for many vision-impaired users, including me.
I understand the desire to share an artistic vision through site design. I just wish people would do it without creating a11y barriers.