The Android 16 QPR1 Beta 1 update introduces new features, including Material 3 Expressive and a "Themes" tab in the Wallpaper and Style app, indicating potential customization through unreleased "Pixel Customization Packs." While the full capabilities of Pixel themes are unclear, they may include new wallpapers, fonts, and app icon designs, addressing the current limitations of app icon customization on Pixel phones. Future updates promise customizable app icon shapes, but lack of support for third-party icon packs remains a significant drawback compared to competitors like OnePlus and Samsung. The introduction of Pixel themes raises hopes for enhanced personalization, particularly regarding icon pack support, which has been a long-standing request from Pixel users.