youtrack-dark-high-contrast.css

* {
    --ring-link-color: #58A6FF;
    --ring-content-background-color: black;
    --yt-app-background: #0e141c;
    --yt-app-background-dark: #0D1117;
    --yt-app-text-color: #deedfb;
    --yt-app-dark-grey-color: #8b949e;
    --ring-text-color:#f0f0f0;
    --ring-secondary-color: #b5c2d0;
    --yt-app-text-grey-mid: #95a0ac;
    --yt-app-changes-background: #0e1317;
    
    /** Code formatting */
    --ring-sidebar-background-color: #151a1e;
    --ring-code-field-color: #daabf2;
    --ring-code-keyword-color: #d79864;
    --ring-code-string-color: #cdfdb0;
}

.yt-diff .diff-del {
    background-color:rgba(218,54,51,0.25)
}
.yt-diff .diff-ins {
    background-color:rgba(35,134,54,0.25)
}