This is violet, great vibe color.
// ==UserScript==
// @name Test
// @namespace http://tampermonkey.net/
// @version 0.7
// @description This is violet, great vibe color.
// @author Picky Panda
// @match https://www.meowplayground.com/game
// @grant none
// ==/UserScript==
(function() {
'use strict';
function changeBackground(color) {
document.body.style.background = color;
}
window.addEventListener("load",function() { changeBackground('purple') });
})();
document.getElementById("buttons-holder").style.backgroundColor = "#FFFF00";