import { ThemeManager } from '@sprucelabs/heartwood-view-controllers';
import { SkillTheme, ThemeChangeHandler } from '../types/heartwood.types';
export declare class ThemeManagerImpl implements ThemeManager {
    private static instance?;
    static Class?: new (theme: SkillTheme) => ThemeManagerImpl;
    private currentTheme;
    private themeCount;
    private themeChangeHandler?;
    private stylesheetNode?;
    private isLocked;
    protected constructor(theme: SkillTheme);
    static getInstance(): ThemeManagerImpl;
    static reset(): void;
    static Manager(): ThemeManagerImpl;
    getTheme(): SkillTheme;
    getThemeSetCount(): number;
    resetThemeCount(): void;
    setTheme(theme: SkillTheme, options?: {
        shouldAnimate?: boolean;
        shouldLock?: boolean;
    }): Promise<void>;
    private dropInExternalStylesheet;
    private applyBorderRadius;
    private deleteProp;
    private setProps;
    protected setProp(name: string, value: string): void;
    onChangeTheme(callback: ThemeChangeHandler): void;
    reset(): Promise<void>;
    clearLock(): void;
}
export declare const heartwoodTheme: SkillTheme;