/** Configured UI theme names, in cycle order. Empty when unset. */
export declare function getConfiguredThemes(): string[];
/** True when the map control should cycle themes (two or more names). */
export declare function shouldShowThemeSwitcher(): boolean;
/** First configured theme, or dark when none are set. */
export declare function getDefaultUiTheme(): string;
/** Next theme in the configured cycle. */
export declare function getNextUiTheme(current?: string): string;