import type { App } from '../App';
import type { Node } from '../Node';
import type { Shadow } from '../types';
import type { UiThemeTokens } from './uiTheme';
/** Canvas UI palette — same fields as `UI`, but mutable after app theme resolve. */
export type UiCanvasTheme = {
    primary: string;
    primaryHover: string;
    primaryActive: string;
    primarySubtle: string;
    primaryMuted: string;
    secondary: string;
    secondaryHover: string;
    success: string;
    successBg: string;
    warning: string;
    danger: string;
    surface: string;
    surfaceMuted: string;
    surfaceInset: string;
    overlay: string;
    border: string;
    borderStrong: string;
    borderFocus: string;
    text: string;
    textSecondary: string;
    textMuted: string;
    textInverse: string;
    textPlaceholder: string;
    radius: number;
    radiusSm: number;
    radiusLg: number;
    radiusFull: number;
    font: string;
    fontSize: number;
    fontSizeSm: number;
    fontSizeLg: number;
    controlHeight: number;
    inputHeight: number;
    spaceXs: number;
    spaceSm: number;
    spaceMd: number;
    spaceLg: number;
    spaceXl: number;
    shadowSm: Shadow;
    shadowMd: Shadow;
    shadowLg: Shadow;
    shadowPrimary: Shadow;
};
/** Merge app UI tokens onto canvas defaults. Empty tokens → identical to `UI`. */
export declare function resolveUiCanvasTheme(tokens?: Partial<UiThemeTokens>): UiCanvasTheme;
/** Sync App-scoped canvas palette (called from App on init / setUiTheme / create). */
export declare function syncActiveCanvasUiTheme(tokens: Partial<UiThemeTokens>, app?: App | null): UiCanvasTheme;
/**
 * Current canvas UI palette for builders.
 * Prefer calling inside a create/refresh (stack); optional `app` uses WeakMap snapshot.
 */
export declare function getActiveUi(app?: App | null): UiCanvasTheme;
/** Run factory/refresh with a fixed palette on the build stack. */
export declare function runWithCanvasUiTheme<R>(theme: UiCanvasTheme, fn: () => R): R;
/** Resolve palette for an app instance (does not mutate the active theme). */
export declare function getCanvasUiTheme(app?: App | null): UiCanvasTheme;
/** Walk stage and update canvas UI component part colors (per-node uiTheme wins). */
export declare function refreshCanvasUi(root: Node, app?: App | null): void;