// ==UserScript==
// @name         Darkness
// @description  Deluminate Clone
// @version      0.5.1
// @namespace    http://adrian.kousz.ch/
// @match        *://*/*
// @grant        none
// ==/UserScript==

/*
 * Inspired by: https://github.com/abstiles/deluminate
 * and: https://github.com/Rojikku/Deluminate
 */

(function(){
	var doStyle = 'invert() hue-rotate(180deg) contrast(80%) brightness(80%)';
	var noStyle = 'hue-rotate(180deg) invert()';

	if (window != window.top) return;

	var doit = function() {
		document.documentElement.style.backgroundColor = '#111';
		document.documentElement.style.color = '#ccc';
		document.body.style.webkitFilter = doStyle;

		var css = 'img:-webkit-any('
			+ '[src$="jpg"],[src$="jpeg"],[src$="webp"]'
			+ '),video{-webkit-filter:' + noStyle + '}';
		injectCss(css);
	};

	var injectCss = function(css) {
		var head = document.head;
		var style = document.createElement('style');
		style.appendChild(document.createTextNode(css));
		head.appendChild(style);
	}

	doit();
})();