I rarely write reviews, but this extension has improved my life so much that I thought I should make a point to come here and give it the 5 stars it deserves. Previously I was using a variety of Stylus userstyles and my own CSS tweaks to try and make a usable Google dark theme, but this extension has replaced almost all of that in one fell swoop. Now I have some of my own tweaks for Google Calendar, but other than that I'm using this addon exclusively across the board, and it's saved me so much headache and annoyance. Thanks so much for making it, and I hope you keep it updated for years to come! ;)