import type { RgbaColor } from '../share/type';
import type { ProgressProps } from './type';
export declare function getBackgroundColor(theme: ProgressProps['theme'], palette: RgbaColor[] | null): RgbaColor | null;
export declare function getGradientColor(theme: ProgressProps['theme'], palette: RgbaColor[] | null): RgbaColor | null;
export declare const drawBorder: (ctx: CanvasRenderingContext2D, width: number, height: number, borderColor: RgbaColor, pixelSize: number) => void;
export declare const drawChecker: (ctx: CanvasRenderingContext2D, width: number, height: number, checkerWidth: number, gradientColor: string, borderWidth: number, padding: number, progress: number) => void;