message: Update ImageHelper for V9.242
  Closes
diff: @@ -12,7 +12,7 @@ declare class ImageHelper {
  */
  static createThumbnail(
  src: string | PIXI.DisplayObject,
  - options?: ImageHelper.CompositeOptions
  + options?: ImageHelper.CompositeOptions & ImageHelper.TextureToImageOptions
  ): Promise<ImageHelper.ThumbnailReturn>;
  /* -------------------------------------------- */
  @@ -31,9 +31,10 @@ declare class ImageHelper {
  /**
  * Extract a texture to a base64 PNG string
  * @param texture - The Texture object to extract
  + * @param options - (default: `{}`)
  * @returns A base64 png string of the texture
  */
  - static textureToImage(texture: PIXI.Texture): string;
  + static textureToImage(texture: PIXI.Texture, { format, quality }?: ImageHelper.TextureToImageOptions): string;
  /**
  * Asynchronously convert a DisplayObject container to base64 using Canvas#toBlob and FileReader
  @@ -82,6 +83,20 @@ declare namespace ImageHelper {
  width?: number;
  }
  + interface TextureToImageOptions {
  + /**
  + * Image format, e.g. "image/jpeg" or "image/webp".
  + * @defaultValue `"image/png"`
  + */
  + format?: string;
  +
  + /**
  + * JPEG or WEBP compression from 0 to 1. Default is 0.92.
  + * @defaultValue `0.92`
  + */
  + quality?: number;
  + }
  +
  /**
  * An interface for return values of the {@link ImageHelper.createThumbnail} method.
  */
  