website/themes/lynx/assets/css/custom.css

.link-ci {
    background: green;
}

.link-nextcloud {
    background: #007bc0;
}

.link-immich {
    background: #accbfa;
    color: #242852;
}

.link-mealie {
    background: #e58325;
}

.link-paperless {
    background: #17541f;
}

.link-git {
    background: #d40000;
}

.link-games {
    background: #00ffff;
    color: #0C356A;
}

.link-bookstack {
    background: #b228b4;
}

.link-freshrss {
    background: #0062bf;
}

.link-grafana {
    background: linear-gradient(0deg,
            #f05a28 25%,
            #fabe0d 100%);
}