Visited links are made indistinguishable

[kpreid]

Location

https://dev-doc.rust-lang.org/1.78.0/rust.css (used by https://dev-doc.rust-lang.org/1.78.0/releases.html)

Summary

The stylesheet sets identical styles for a and a:visited, so it is impossible to distinguish visited links. Visible visited links are an important navigation aid when exploring long lists of links, like release notes. Please add a distinct color for visited links (purple is traditional), or remove colors so that browser default colors are used.