import type{ReactiveController,ReactiveControllerHost}from'lit';export type LyraThemeRoot=Document|ShadowRoot|Element;
/**
* Explicitly invalidates computed Lyra theme values in a document realm. This is useful after a
* host application's theme system mutates styling through a mechanism the platform cannot
* observe. It is a no-op during server rendering.
*/
export declare function invalidateLyraTheme(root?:LyraThemeRoot):void;
/**
* Watches every platform signal that can change token values without a Lit property update:
* theme attributes, stylesheet DOM/CSSOM/adoption changes, and media-query result changes.
* Canvas consumers opt in so DOM/SVG components keep relying on the CSS cascade directly.
*/
export declare class ThemeWatcher implements ReactiveController{private readonly host;
/** Invoked once per microtask when the effective theme may have changed. */
private readonly onChange;private observer?;private unsubscribeRealm?;private readonly mediaQueries;private roots;private realm?;private queued;private mediaQueriesDirty;private generation;constructor(host:ReactiveControllerHost&Element,
/** Invoked once per microtask when the effective theme may have changed. */
onChange:()=>void);hostConnected():void;hostDisconnected():void;private teardown;private installObserver;private onMutations;private onStylesheetLoad;private onStylesheetMutation;private mutationCanAffectHost;private onMediaQueryChange;private refreshMediaQueries;private queueChange;}