Customizable Calculator
Fancy calculator, which allows you change theme you like.
Google Play description: This is not standard boring calculator. This is calculator, which allows you change themes! You can choose theme, which you like. Also, it has cool and useful features copy and paste from clipboard. More themes and more features are coming.
Google Play Link
This application is follower of Hadankar Calculator, but it has more features. Biggest feature is possibility to change theme. In first phase, there are only 6 themes, but more will come in future. Also there is a advertisement in this application.
Application has a new icon, created in GIMP, it should show possibility of changing themes. Application has features for copy and paste to and from clipboard.
Here are screen-shots with currently available themes: