DarkThemeDeepinBehaviorFix UserScript

DarkThemeDeepinBehaviorFix.user.js

// ==UserScript==
// @name DarkThemeDeepinBehaviorFix
// @description Firefox clean behavior while using Deepin dark theme
// @version 1
// @author Gaëtan JANSSENS
// @include *
// @icon https://www.linuxinsider.com/ai/671878/linux-distro-international.jpg
// @run-at document-end
// @grant    none
// ==/UserScript==


// [1] skip all iframe 
if (window.self!=window.top) {return}

// create element
function ce(n) { return document.createElement(n); } // end of function

// add style
function addStyle(css) {
    var head = document.head || document.getElementsByTagName('head')[0];
    if (head) {
        var style = ce("style");
        style.type = "text/css";
        style.appendChild(document.createTextNode(css));
        head.appendChild(style);
    } // end if
} // end of function


let s='textarea{ background-color: white; }';
s+='input,textarea{ color: black }';
addStyle(''+s);
console.log(''+s);