zulip-desktop/app/renderer/css/preference.css

html, body {
    height: 100%;
    margin: 0;
    cursor: default;
}

#content {
    display: flex;
    height: 100%;
    font-family: sans-serif;
    background: #fff;
}

#sidebar {
    width: 80px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    font-size: 16px;
}

#tabs-container {
    padding: 20px 0;
}

.tab {
    padding: 5px 0;
    color: #999;
    cursor: pointer;
}

.tab.active {
    color: #464e5a;
    cursor: default;
}

.tab.active::before {
    color: #464e5a;
    cursor: default;
}
#settings-header {
    font-size: 24px;
    color: #5c6166;
}

.settings-container {
    width: 100%;
    display: flex;
}