attheme

.atthemeAndroid Theme File

Google (Android) · 2014

Developer
Google (Android)
Category
System Files
MIME Type
application/x-android-theme
First Released
2014
Open Format
No
File Signature
Not a standardized signature; typically identified by the .attheme extension and internal structure.
At a Glance
.attheme
Android Theme File

A proprietary file format used by Android to package custom visual themes for the operating system's interface.

Reviewed on July 13, 2026
Compression
Compressed
Transparency
N/A
Editability
Low
Best for
Android system themes

Key Features

  • Customizes Android UI elements: icons, colors, backgrounds, fonts.
  • Bundles all theme assets into a single file.
  • Allows for deep personalization of the device's appearance.
  • Requires specific system support or apps to apply.

Best For

  • Android users seeking deep interface customization.
  • Creating a unique visual identity for Android devices.
  • Distributing collections of theme assets for Android.

Less Ideal For

  • Cross-platform theming.
  • Applying themes to non-Android operating systems.
  • Users who prefer simple, out-of-the-box customization.
  • Distributing app-specific styling outside the Android ecosystem.

Common Use Cases

  • Applying custom color schemes to an Android device.
  • Changing icon packs system-wide.
  • Setting unique wallpapers and lock screen backgrounds.
  • Modifying system fonts for a different reading experience.
  • Creating distinct visual profiles for different users or moods.

How to Open It

  1. On an Android device, themes are typically applied through the device's settings or a dedicated theming app. Simply navigate to the theme settings and select the .attheme file or an installed theme.
  2. To extract or view the contents of an .attheme file, you can often rename it to a .zip extension and open it with a standard archive utility like WinRAR, 7-Zip, or the built-in tools on macOS and Linux.
  3. If you wish to create your own .attheme files, you will likely need specialized Android development tools and knowledge of Android's resource management system.

What is a .attheme file?

An Android Theme File, or .attheme, is a proprietary file format used by Android devices to store custom visual themes. These themes dictate the appearance of the operating system's interface, including icons, colors, backgrounds, and fonts. They allow users to personalize their device's look and feel beyond the default settings provided by the manufacturer. While primarily for system-wide theming, they can also sometimes include elements for individual apps, offering a comprehensive customization experience.

Programs That Open .attheme Files

PlatformProgram
Windows7-ZipFree
WinRARPaid
macOSThe UnarchiverFree
Linux7-ZipFree
AndroidFiles by GoogleFree
Substratum Theme EnginePaid

How to Convert .attheme Files

FormatMethod
.ZIPRename the file extension to .zip and open with an archive utility.

Common Problems with .attheme Files

⚠️ Cannot apply the theme on the device.
Ensure the theme is compatible with your Android version and device model. Some themes require root access or specific theming engines like Substratum.
⚠️ The theme appears corrupted or incomplete.
Re-download the .attheme file from a trusted source. If you extracted it from a zip, ensure the extraction process was successful.
⚠️ Can't open the file on a computer.
Rename the .attheme file to .zip and use an archive manager (like 7-Zip or WinRAR) to extract its contents.

Frequently Asked Questions

What is the primary purpose of an .attheme file?

Its primary purpose is to package and apply custom visual themes to the Android operating system's interface, altering its appearance.

Can I use .attheme files on iOS or Windows?

No, .attheme files are specific to the Android operating system and cannot be used on iOS, Windows, or other platforms.

Is an .attheme file the same as an app (.apk)?

No, an .attheme file is for theming the system's look, while an .apk is an installable application package for Android. Some theming apps might distribute themes within their .apk.

Technical Details

The .attheme format is essentially a compressed archive, often containing XML configuration files and drawable resources like images and fonts. It's designed to be read and applied by the Android system framework or specific theming engines. The internal structure dictates how visual elements are mapped to UI components.

Did You Know?

While most Android devices don't natively support .attheme files out-of-the-box, custom ROMs or specialized apps can enable their use.
The internal structure of an .attheme file is similar to a standard compressed archive, making it possible to inspect its contents with archive tools.

Security Information

Always download .attheme files from reputable sources. Malicious themes could potentially alter system behavior or inject unwanted code, though direct system compromise is less common than visual manipulation.

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