gray filter remover

移除国家公祭日加在网页上的灰色滤镜, 恢复彩色适用于大部分网站.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         gray filter remover
// @namespace    color
// @version      1.5
// @description  移除国家公祭日加在网页上的灰色滤镜, 恢复彩色适用于大部分网站.
// @author       AndyF
// @license      GPL-3.0-or-later
// @match        *://*/*
// @exclude      *://*.youtube.com/*
// @exclude      *://*.facebook.com/*
// @exclude      *://twitter.com/*
// @grant        none
// @run-at       document-body
// ==/UserScript==

(function() {
    'use strict';
    var grayDate=new Array();
    var a = new Date();
    grayDate.push("2020-4-4"); //抗击新冠疫情斗争牺牲烈士纪念日
    grayDate.push("2020-12-13"); //第七个南京大屠杀国家公祭日
    grayDate.push("2022-11-30"); // 3rd 领导人逝世, 持续7天
    grayDate.push("2022-12-1");
    grayDate.push("2022-12-2");
    grayDate.push("2022-12-3");
    grayDate.push("2022-12-4");
    grayDate.push("2022-12-5");
    grayDate.push("2022-12-6");
    grayDate.push("2022-12-7");

    var today=a.getFullYear()+"-"+(a.getMonth()+1)+"-"+a.getUTCDate();
    if(-1 == grayDate.indexOf(today)) return;//非灰色日期时退出脚本, 避免引发bug

    function addNewStyle(newStyle) {
        var styleElement = document.getElementById('styles_remove_gray_filter');

        if (!styleElement) {
            styleElement = document.createElement('style');
            styleElement.type = 'text/css';
            styleElement.id = 'styles_remove_gray_filter';
            document.getElementsByTagName('head')[0].appendChild(styleElement);
        }

        styleElement.appendChild(document.createTextNode(newStyle));
    }

    addNewStyle('* {filter: unset!important;-webkit-filter: unset!important;}');
    document.getElementsByTagName("html")[0].style.cssText="-webkit-filter: grayscale(0%) !important; ";
})();