1. Fix new software default mode restarts back to normal (when native returns 0 mistakenly overwrites SharedPreferences)
2. Theme store download integrity verification (file size / HTML error page detection) + app failure prompt long press delete
3. Add first launch 4-page welcome guide (custom introduction → kernel function entry guidance)
4. Replace default icon with the sleeping image of Requiem (self-made)
5. Add security handling to some configuration files to avoid failure