import * as PIXI from "pixi.js";
/**
 * Creates a Pixi texture from either a plain fill color or a vertical linear gradient definition.
 *
 * The helper renders into a temporary canvas, converts that canvas into a Pixi texture, and then
 * removes the temporary DOM element. Gradient input is parsed through `parseGradient`; invalid gradients
 * fall back to a solid canvas fill using the original string.
 *
 * @param colorInput Plain color string or supported gradient declaration.
 * @param width Target texture width in pixels.
 * @param height Target texture height in pixels.
 * @returns A Pixi texture containing the generated fill.
 */
export declare function createGradientTexture(colorInput: string, width: number, height: number): PIXI.Texture;