Doodle is a Java-based open-source wallpaper application developed by Patrick Zedler, featuring the original Doodle wallpaper collection from the Pixel 4 and unreleased Material You static wallpapers from the Pixel 6. The app allows users to explore wallpapers organized into three categories, select variants, add accent colors, set daily random wallpapers, and toggle night mode. Doodle includes three live wallpapers with interactive features like "Swipe" and "Tilt" effects. Users can customize live wallpaper animations and app color themes through various settings. During testing on a Samsung smartphone with Android 14, some features like the "Swipe" effect and Accent Colors were non-functional due to compatibility issues with the default launcher. The app's live wallpaper occasionally malfunctioned during the lock/unlock process, and transitioning between light and dark modes required relaunching the app. The source code is available on GitHub under GPLv3 licensing, and the app can be downloaded from F-Droid and the Play Store.