Google Calendar color undecided items

google-calendar-color-undecided.tampermonkey

// ==UserScript==
// @name           Google Calendar color undecided items
// @namespace      adelton
// @description	   New 2018 Google Calendar, color undecided items to make clearer which calendar they are in
// @include        https://www.google.com/calendar/*
// @include        https://calendar.google.com/*
// @version        1.1
// @grant          none
// ==/UserScript==
document.addEventListener('DOMNodeInserted', function() {
    var i;
    var cal_items = document.querySelectorAll('div.lFe10c');
	for (i of cal_items) {
        if (i.style.backgroundColor == "" && i.parentNode.style.backgroundColor == "") {
            // i.style.parentNode.backgroundColor = i.style.color;
            i.style.backgroundColor = i.style.color;
            i.firstChild.style.color = "lightgrey";
            // i.firstChild.style.filter = "blur(1px)";
        }
    }
}, false);