css

Optional. Adds style classes to Sidebar

css?: string;

Example

<style>
    .custom,.custom--popup-menu {
        --dhx-background-primary: #3A434A;
        --dhx-background-secondary: #5a6872;
        --dhx-background-additional: #5a6872;
        --dhx-s-toolbar-background: var(--dhx-background-primary);

        --dhx-color-primary: #118d8d;
        --dhx-color-primary-hover: #49e9e9;
        --dhx-color-primary-active: #49e9e9;

        --dhx-font-color-primary: #fff;
        --dhx-font-color-secondary: rgba(255, 255, 255, 0.75);
        --dhx-font-color-additional: #fff;
    }
</style>

<script>
    const sidebar = new dhx.Sidebar("sidebar_container", {
        css: "custom",
    });
</script>

Related sample: Sidebar. Styling (custom CSS)

Note, that the DHTMLX library provides a set of own CSS classes that you can also apply to change the appearance of Sidebar:

const sidebar = new dhx.Sidebar("sidebar_container", {
    css: "dhx_widget--bg_white"
});

Related articles:

List of CSS classes for styling a widget
Themes

Example​

Example