Created by: ffoodd
Alongside #30972 — and in #30548 roadmap — this ensures that hover and active states have higher contrasts than the default state:
- for colored links it makes obvious that we have to find a clean way to add darkish background behind some of them.
- the warning button's shadow feels a bit weird, not quite sure about what to do with it for now.
Preview: Buttons — Colored links
Since this is only visual, should we consider to backport this to v4?