export interface TreeTheme {
    /** CSS class applied to the root tree container. */
    base: string;
    /** CSS class applied to the tree element. */
    tree: string;
    /** CSS class applied to the expand/collapse arrow icon. */
    arrow: string;
    /** Class names applied to each tree node and its parts. */
    node: {
        base: string;
        collapsed: string;
        disabled: string;
        leaf: string;
        label: string;
        button: {
            base: string;
            icon: string;
        };
    };
    /** CSS class applied to the block wrapping a node and its toggle. */
    nodeBlock: string;
    /** CSS class applied to a nested subtree under a node. */
    subtree: string;
}
export declare const treeTheme: TreeTheme;