Alguém sabe o nome deste complemento de tema?

[David_Ghost]

O que você acha disso?

Background SVG distinguished posts

It looks like their implementation goes beyond simple CSS changes because that SVG is added to the markup, but this should also be possible with CSS alone… I think this should get you most of the way there .topic-post.moderator { position: relative; &:before { content: ""; position: absolute; display: block; width: 100px; height: 100px; background: url('data:image/svg+xml;utf8, <svg aria-hidden="true" focusable="false" role="img" xmlns="http://www.w3.org/2000/svg" v…