Always keep a backup of the original .mtz before editing. Xiaomi’s Theme Store rejects themes that cause crashes or battery drain – test thoroughly on multiple devices. Report compiled based on Xiaomi official documentation, MIUI theming community knowledge (XDA, Reddit, Telegram groups), and practical usage of Theme Editor version 2.3.1. Last updated: 2026.
The editor is still valuable for rapid prototyping of lock screens and icon packs, but you will need to manually test on device and tweak resources for newer MIUI/HyperOS builds. xiaomi theme editor
✅ Good for: Beginners learning MIUI theming, batch icon replacement, lock screen animations. ❌ Bad for: HyperOS compatibility, advanced SystemUI mods, cross-platform workflows. Always keep a backup of the original