export type ClusterTheme = 'classic' | 'sport' | 'digital';
/** Named automotive presets — independent of app `setUiTheme` (Phase 5). */
export declare const AUTOMOTIVE_THEME_PRESETS: readonly ClusterTheme[];
export interface ThemePalette {
    background: string;
    dialStroke: string;
    needleSpeed: string;
    needleTach: string;
    text: string;
    textMuted: string;
    accent: string;
    warning: string;
    ok: string;
    lampOn: string;
    lampOff: string;
    /**
     * Multiplier for fluid / label typography (1 = preset default).
     * Driven by app `fontSize` relative to UI base (14px); colors stay dual-system.
     */
    fontScale: number;
}
/**
 * Automotive HMI palettes.
 * These are **not** driven by `app.setUiTheme()` — change via `props.theme` or
 * `updateAutoWidgetProps(node, { theme: 'sport' })` so clusters keep vehicle-specific look.
 */
export declare const THEMES: Record<ClusterTheme, ThemePalette>;
/** Sync automotive label scale from UI `fontSize` (14px → scale 1). */
export declare function syncAutomotiveFontScale(ui: {
    fontSize?: string;
} | undefined, app?: object | null, basePx?: number): number;
/** Sync default automotive preset from ThemePack.automotive. */
export declare function syncAutomotiveDefaultPreset(name: ClusterTheme | undefined, app?: object | null): ClusterTheme;
export declare function getAutomotiveFontScale(app?: object | null): number;
export declare function getDefaultAutomotivePreset(app?: object | null): ClusterTheme;
/** Resolve cluster theme name: props.theme → ThemePack.automotive → classic. */
export declare function autoThemeName(props: Record<string, unknown>, app?: object | null): ClusterTheme;
/** Run a widget build with a component-level font scale (beats app scale). */
export declare function runWithAutomotiveFontScale<T>(scale: number, fn: () => T): T;
/** Resolve scale from widget props; null → use app scale. */
export declare function automotiveFontScaleFromProps(props: Record<string, unknown>, basePx?: number): number | null;
export declare function getTheme(name: string, app?: object | null): ThemePalette;
/** Palette from widget props + optional App pack default. */
export declare function themeFromProps(props: Record<string, unknown>, app?: object | null): ThemePalette;