chromium/third_party/blink/renderer/core/html/forms/resources/suggestion_picker.css

.suggestion-list {
    list-style: none;
    margin: 0;
    font: -webkit-small-control;
    border: 1px solid #bfbfbf;
    background-color: white;
    overflow: hidden;
    padding: 4px;
}


.suggestion-list-entry {
    white-space: nowrap;
    -webkit-select: none;
    cursor: default;
    border-radius: 2px;
    font-size: 14px;
    height: 32px;
    line-height: 32px;
}

.suggestion-list-entry:focus {
    background-color: #E5E5E5 !important;
    outline: solid 2px -webkit-focus-ring-color;
    outline-offset: -2px;
}

.suggestion-list-entry .content {
    padding: 0 4px;
}

.suggestion-list-entry .label {
    text-align: right;
    float: right;
    padding: 0 4px 0 20px;
    color: rgba(16, 16, 16, 0.6) !important;
}

.rtl .suggestion-list-entry .label {
    float: left;
    padding: 0 20px 0 4px;
}

.suggestion-list-entry .title {
    direction: ltr;
    display: inline-block;
    color: #101010;
}

.locale-rtl .suggestion-list-entry .title {
    direction: rtl;
}

.measuring-width .suggestion-list-entry .label {
    float: none;
    margin-right: 0;
}

.suggestion-list .separator {
    border-top: 1px solid #dcdcdc;
    height: 0;
}

@media (forced-colors: active) {
    .suggestion-list-entry:focus {
        background-color: Highlight !important;
        forced-color-adjust: none;
    }

    .suggestion-list-entry:focus .label,
    .suggestion-list-entry:focus .title {
        color: HighlightText !important;
    }

    .suggestion-list-entry .label,
    .suggestion-list-entry .title {
        color: WindowText !important;
    }
}

@media (prefers-color-scheme: dark) {
    .suggestion-list {
        background-color: #3B3B3B;
        color:#ffffff;
        border: 1px solid #858585;
    }

    .suggestion-list-entry:focus {
        background-color: #101010 !important;
    }

    .suggestion-list-entry .label,
    .suggestion-list-entry .title {
        color:#ffffff !important;
    }
}