/** @format */
import { ColorUint8 } from './color-uint8.js';
/**
 * Class representing an RGBA color with 8-bit channels.
 * @extends ColorUint8
 */
export declare class ColorRgba8 extends ColorUint8 {
    /**
     * Create a ColorRgba8 instance.
     * @param {number} r - The red channel value.
     * @param {number} g - The green channel value.
     * @param {number} b - The blue channel value.
     * @param {number} a - The alpha channel value.
     */
    constructor(r: number, g: number, b: number, a: number);
    /**
     * Create a ColorRgba8 instance from another ColorUint8 instance.
     * @param {ColorUint8} other - The other ColorUint8 instance.
     * @returns {ColorUint8} A new ColorUint8 instance.
     */
    static from(other: ColorUint8): ColorUint8;
}