Customization of desktop is a habit of some creative people. When it comes to PC customization Rainmeter comes in our mind. Rainmeter is a great program to makeover Windows PC with ton of great customization option. But sadly Rainmeter is not available for Mac, GeekTool is a great Rainmeter alternative for Mac.
Using GeekTool you can customize the Mac the way you want. It needs some scripting knowledge to get started. After installation it available in the System Preferences as a preference pane. Overall it is a very good app to change the look and feel of Mac desktop.
Img credit vantran