/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
declare global {
    interface Document {
        playwrightThemeInitialized?: boolean;
    }
}
type DocumentTheme = 'dark-mode' | 'light-mode';
export type Theme = DocumentTheme | 'system';
export declare const kThemeOptions: {
    label: string;
    value: Theme;
}[];
export declare function applyTheme(): void;
export declare function addThemeListener(listener: (theme: DocumentTheme) => void): void;
export declare function removeThemeListener(listener: (theme: DocumentTheme) => void): void;
export declare function currentDocumentTheme(): DocumentTheme | null;
export declare function useThemeSetting(): [Theme, (value: Theme) => void];
export {};
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