I have seen some people say they don’t like the new Google “Cleaner” or minimalist look. Depending on the app, like Google+ it looks good because of the amount of items on the page. Some, like Gmail or Calendar it seems just a bit too much white space. I have kept my Gmail with my Pebbles theme because as you can see from the screen shots it is way to much white with no borders. I have moved to the new look in Calendar because there are border lines to break up the look.
Here are a few Thumbnails from each, click them to enlarge:
- If you want you don’t need to change on Gmail from your current theme. Right now it is not a requirement and I would not see them making it one.
- In Google Calendar you can click the gear on the upper right of the page and choose “Use the Classic Look” if it’s not right for you.