Minimalist of Google Calendar is a neat extension for Chrome, which is one of the best tweaking tools for Google Calendar. You can change the color, fonts, font color, hide elements, header, navigation bar, logo and many more features. This extension offers a customized version of Google Calendar and you can customize each and every element in Calendar. The options menu offers you complete access to all the features and you can customize based on what you need in Google Calendar.
If you are confused on what exactly are the features it hides, you can easily get to know that by just hovering on each option and it shows a preview of what it does. You can enable custom links replacing the default set of links provided by Google on the top navigation bar.
The extension is currently in beta, but works perfectly on Google Calendar.
Minimalist for Google Calendar is a very useful extension to add or remove features to Google Calendar interface from Google Chrome.