:root {
    --panel-border-color: rgb(41, 41, 45);
    --panel-background-color: rgb(15, 15, 17);
}

.drui-panel {
    display: flex;
    flex-direction: column;
    border-left: 1px solid  var(--panel-border-color);
    background: var(--panel-background-color);
}