Creating your own visual style for a smartphone is not just entertainment, but a powerful personalization tool that turns a standard interface into a unique product. Owners of Xiaomi, Redmi and POCO devices often look for ways to change the appearance of the system, but few know that they can become designers themselves. The process of developing a thematic design requires attention to detail, but the result is worth it: your work can be made available to millions of users around the world through the official Mi Store.
Before you start drawing icons, you need to understand that creating themes is about working with specific configuration files and graphic resources. MIUI (and now HyperOS) uses a special packaging format that allows you to replace system images, sounds, fonts and even elements of the screen blocker interface. The official tool for creating themes is only available on the Windows operating system, which is a critical requirement before you start working. Without a PC, you can not start a full development process, since mobile emulators often work unstable or do not support all the compilation functions.
Many beginners mistakenly believe that it is enough to simply redraw icons in a graphics editor. In fact, you will have to get acquainted with the structure of folders, the rules of naming files and the features of widget layout. It is an exciting way that combines skills in graphic design and a basic understanding of the logic of interfaces. In this article, we will examine all the steps from the preparation of the workplace to the final check of the finished product on a real device.
Preparation of the workplace and installation of tools
The first step to creating your own theme is to prepare software, you need a Windows computer and a stable Internet connection, and the main tool is the Theme Editor, Xiaomi's official software that automates the process of building and verifying files, and you can only download it after you register as a developer on the Mi Global portal.
The registration process can take some time, as it requires proof of identity and a developer questionnaire. Once approved, you will be given access to your personal account, where the link to the editor download is located, and you should not neglect to install the latest versions of drivers for your smartphone to ensure a stable USB connection for testing.
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Use a separate Mi user account to test so that you don’t clog up your primary account.
You'll also need a high-quality graphics editor. Although Theme Editor has basic features, you'll need to use Adobe Photoshop, GIMP or Figma to draw complex icons and wallpapers, and it's important to create a folder for the project that stores the source code in advance so you don't get confused with the file versions.
Registration of Xiaomi Developer Account
Without developer status, you can't download the software you need or publish your work. Go to the official Xiaomi Developers website and select the topic section, and you'll need to fill out a profile with real data, because the system is verifying.
Pay special attention to your portfolio description, even if you don't have a job yet, write about your design skills and plans, which increases the confidence of moderators, and after applying, status can be updated from a few hours to several days.
- 📝 Fill in all the English Profile fields to speed up the check.
- 🔗 Link your phone number and email to which you have permanent access.
- 📸 Download the avatar and profile cover to make your account look professional.
Once you're a Developer, you'll have a new tool tab in your account, and that's where you'll find the link to the Theme Studio download, and you'll install it following the installer's instructions, and you'll log in using your developer credentials.
What to do if the application is rejected?
Project structure and interface Theme Editor
The interface may seem overloaded, but it's logically divided into functional blocks. On the left is the project tree, which displays all the components of the theme, from app icons to system sounds. In the center is the preview area, which allows you to see real-time changes on the virtual model of the smartphone.
Each theme element is a separate file or a group of files, for example, icons are stored in the icons folder and wallpaper is stored in the wallpaper folder. It is important to follow the original file name, otherwise the system will not be able to replace the standard item. The editor automatically highlights the missing files if you delete something extra.
The top bar contains the compilation and test launch buttons, and Compile is the one that brings all the disparate images and xml files together into a single package with the.mtz extension, and this is a ready-made theme that you can install on your phone.
☑️ Verification of the project structure
Remember to save the project regularly. The program has autosave function, but when working with graphics it is better to be safe, and in the editor settings you can select the screen resolution of the target device so you can immediately see how the theme will look on different diagonals.
Creating and editing application icons
Icons are the face of your theme, they take up to 70 percent of the time to develop, and in Theme Editor, you can import finished images or draw them directly in the built-in editor, but for quality, you'd better have a basic template in Photoshop.
The standard size of an icon in MIUI is 192x192 pixels, but for modern screens with high DPI, it is recommended to use source sources in 512x512 pixels. The program itself scales them if necessary. The main thing is to follow a single style: if you do a flat design, all icons should be flat.
| Element | Recommended authorization | File format | Note |
|---|---|---|---|
| Application icon | 192x192 px | PNG | Be sure to have a transparent background |
| Desktop wallpaper | 1080x2340 px | JPG/PNG | Depends on the phone model. |
| Lock screen wallpaper | 1080x2340 px | JPG | Less weight of file |
| Preview of the topic | 480x800 px | PNG | For display in the store |
The editor has a feature for automatic generation of icons based on system, but it often fails.-50 Popular apps like WhatsApp, Telegram, Instagram, YouTube and system utilities will create a sense of integrity in the design.
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The quality of icons determines the success of the theme: users first of all pay attention to the recognition and style of application icons.
Design of widgets and lock screen
The lock screen is the first thing that a user sees, and you can customize the look of the Theme Editor, change the font of the watch, change the color of the date, change the style of the notifications, and unlock animation is also available, but it requires frame-by-frame animation skills to create it.
Desktop widgets (clock, weather, pegmeter) require special attention. They are built using the help of XML-There's a visual constructor in the editor where you can drag and drop elements with your mouse, but you sometimes have to manually adjust coordinates to fit them accurately.
- ⏰ Watch: You can change the font, color and add a second hand.
- 🌤 Weather: the display of weather and temperature icons is configured.
- 🔋 Battery: available to customize the charge indicator in the style of the widget.
Don't overload the lock screen with too much information. Minimalism is trending and users appreciate the clean interface. Check the readability of fonts against bright and dark backgrounds, as the wallpaper of users can be different.
Testing and debugging theme on the device
Before you submit a topic to moderation, you need to check it on a real device. Connect your smartphone to your computer through a computer. USB-cable and turn on the debugging mode USB In Theme Editor, click Preview to set the theme in test mode.
The test theme is set for 5 minutes, which is usually enough time to scroll through the menu, open the settings and check the display in different applications. Pay attention to the system dialog boxes, volume menus and notification curtains - these are the places where visual bugs occur most often.
⚠️ Warning: If the phone freezes or the sound is gone after installing the theme, restart the device immediately. In Restore mode, you can reset the theme to standard if access to the menu is lost.
If you find an error, go back to the editor, fix the file, and run the compilation again. The edit-compilation-test cycle can be repeated many times. Don't be lazy to check the topic on different models if possible, because on screens with a notch or hole, elements can be superimposed on the camera.
Posting in Mi Store and Moderation
When the theme is ready and tested, the publication phase begins: in the editor, select Submit, fill out the product card: name, description, tags and upload screenshots. The description should be in English if you are targeting the global market, or in Russian for the local one.
Moderation takes 3 to 10 working days, and the checks are rigorous: moderators look for (copy) other people's works, copyright infringement (use of brand logos without a license) and technical errors. If the topic is rejected, you will receive a detailed report with reasons.
⚠️ WARNING: Using Disney, Marvel, Nike or other trademarks without official permission will result in a perpetual ban on a developer account.
Once the moderation is successful, the theme will appear in the store, and you can track download statistics and ratings in the developer's personal account, and the popularity of the theme depends on the quality of the design, the number of icons supported, and the relevance of the style.