remove grayscale

remove.js

// ==UserScript==
// @name         Fuck Grayscale
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // get all elements
    const list = document.querySelectorAll('*');

    // key words of classes
    const keywords = ['gray', 'big-event-gray', 'grayTheme', 'tb-allpage-filter'];

    window.onload = () => {

        // remove grayscale filters
        list.forEach(i => {

            // remove style
            if(i.style.filter.startsWith('grayscale')) {
                i.style.filter = '';
            }

            // remove style classes
            keywords.forEach(j => {
              i.classList.remove(j);
            });
        });
    };
})();