Greasy Fork is available in English.

NightVision Mode (夜间模式)

Protect your EYE. (保护视力)

// ==UserScript==
// @name         NightVision Mode (夜间模式)
// @namespace    http://www.cndev.org/
// @version      0.2
// @description  Protect your EYE. (保护视力)
// @author       Zhong # www.cndev.org
// @include      *
// @grant        GM_addStyle
// @run-at       document-end

// ==/UserScript==
/* jshint -W097 */
'use strict';

GM_addStyle('html * {background: transparent !important; color: white !important;} a:link {color: green !important;} a:visited {color: yellow !important;} a:hover {color: blue !important;}');
GM_addStyle('html body {background: black !important;}');