tabby/tabby-core/src/components/titleBar.component.scss

$titlebar-height: 30px;

:host {
    flex: 0 0 $titlebar-height;
    display: flex;

    .title {
        flex: auto;
        padding-left: 15px;
        line-height: $titlebar-height;
        -webkit-app-region: drag;
    }

    &.inset {
        flex-basis: 36px;

        .title {
            padding-left: 80px;
            line-height: 36px;
        }

        window-controls {
            display: none;
        }
    }
 }