import type { Theme } from '../../../theming/types.js';
import type { DefaultMap } from './default-map.js';
export type IconsCollection<T> = DefaultMap<string, Map<string, T>>;
export type IconCallback = (name: string, collection: string) => void;
export type IconThemeKey = Theme | 'default';
export type SvgIcon = {
    svg: string;
    title?: string;
};
export type IconReference = {
    alias: IconMeta;
    target: Map<IconThemeKey, IconMeta>;
};
export type IconReferencePair = {
    alias: IconMeta;
    target: IconMeta;
    overwrite: boolean;
};
export declare enum ActionType {
    SyncState = 0,
    RegisterIcon = 1,
    UpdateIconReference = 2
}
/** @ignore */
export interface BroadcastIconsChangeMessage {
    actionType: ActionType;
    collections?: Map<string, Map<string, SvgIcon>>;
    references?: Map<string, Map<string, IconMeta>>;
    origin?: string;
}
export interface IconMeta {
    name: string;
    collection: string;
    external?: boolean;
}