kvmd/web/share/css/remote/status.css

span.bulb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

div[state='unknown'] span.bulb {
    background-color: yellow;
}

div[state='online'] span.bulb {
    background-color: limegreen;
}

div[state='offline'] span.bulb {
    background-color: grey;
}

div[state='error'] span.bulb {
    background-color: orangered;
}

span.state {
    margin-left: 24px;
    color: grey;
    user-select: none;
}

div[state='unknown'] span.state::before {
    content: "[ Unknown ]";
}

div[state='online'] span.state::before {
    content: "[ Online ]";
}

div[state='offline'] span.state::before {
    content: "[ Offline ]";
}

div[state='error'] span.state::before {
    content: "[ Error ]";
}