The modern version of connect seems like a great improvement. I noticed, however, that if you switch the colors of activities, they are forgotten as soon as you exit full screen calendar. Is there a way to save them that I'm unaware of, or is this a bug?
It now works for me, using Firefox 29.0 on windows 7. The problem I reported occurred when I tried modern at work, where we run a very old version of Firefox. May be due to the ancient browser we run there.
