Garish distracting colors where the old one used muted colors that were easy on the eye.
The new Google calendar app pushed to Android within the last few weeks is a perfect example of this. In the old one, I could easily pick out dates and items. In the new one, the colors overwhelm everything and I literally have to consciously focus my mind to "see" the data they are presenting. It's a complete FAIL, IMO. I wish there was an option to opt out of the material design version.
I did the same - uninstalled it. For the most part I like Material Design, but on a Nexus 5 the new calendar app is woefully bad, and the reviews piling into the Play store tell that story - in the last week overwhelmingly 19k negative reviews, ouch.
The new Google calendar app pushed to Android within the last few weeks is a perfect example of this. In the old one, I could easily pick out dates and items. In the new one, the colors overwhelm everything and I literally have to consciously focus my mind to "see" the data they are presenting. It's a complete FAIL, IMO. I wish there was an option to opt out of the material design version.