method Image.prototype.lightnessimport { Image } from "https://deno.land/x/imagescript@v1.2.14/ImageScript.js"; lightness(value, absolute?)Sets the brightness of the image ParametersvalueThe lightness to apply (0..1) optionalabsolute = [UNSUPPORTED]Whether to scale the current lightness (false) or just set the new lightness (true)