Color theme is an application for Android devices that allows you to change the look of your phone's interface to one of the many available themes. It also comes with a set of custom icons, which can be changed to match your own preferred style. This application is free to use, and you don't need to pay a penny to download it.

This application is not a standalone app. It is an icon pack, and you need to install a custom launcher to apply it. You can download it for free from the Play Store.

To install this icon pack, you need to first download the Neox Launcher app from the Play Store. You will then be able to apply the black theme by clicking on the "Apply" button.