random color menu comand

cambio colore dal pulsante e dal menu
Fra 19.07.2022. Se den seneste versjonen.
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// ==UserScript==
// @name           random color menu comand
// @namespace      https://greasyfork.org/users/237458
// @version        0.2
// @description    cambio colore dal pulsante e dal menu
// @author         figuccio
// @match          *://*/*
// @icon           https://www.google.com/s2/favicons?sz=64&domain=stackoverflow.com
// @grant          GM_addStyle
// @grant          GM_setValue
// @grant          GM_getValue
// @grant          GM_registerMenuCommand
// @noframes
// @license        MIT
// ==/UserScript==
(function() {
    'use strict';
    var Button = document.createElement('button');
    document.getElementsByTagName('body')[0].appendChild(Button);
    Button.setAttribute ('id', 'prova');
    Button.setAttribute ('title', 'cambio colore');
    Button.style = "position:absolute;top:370px;right:0px;z-index:9999999999999999999999;background-color:green;color:red;padding:3px;border-radius: 5px;border-color:black;";
    Button.innerHTML = "cambia colore random";
    Button .addEventListener("click",getRandomColor);

function getRandomColor() {
  var letters = "0123456789ABCDEF";
  var randomColor = "#";
  for (var i = 0; i < 6; i++) {
    randomColor += letters[Math.floor(Math.random() * letters.length)];
  }

  document.body.style.backgroundColor = randomColor;
}

GM_registerMenuCommand("genera color",getRandomColor);
})();
/*
 function myFunctionnasc() {
 if (prova.style.display === 'none') {prova.style.display = 'block';} else { prova.style.display = 'none';}}
GM_registerMenuCommand("mostra pulsante/nascondi",myFunctionnasc);
*/
  function myFunctionnasc() {
 if(prova.style.display = (prova.style.display!='none') ? 'none' : 'block');}

GM_registerMenuCommand("mostra pulsante/nascondi",myFunctionnasc);