Android Milestone 3: [Wikipedia, Aurora Borealis](https://en.wikipedia.org/wiki/File:EIELSON_AIR_FORCE_BASE,_Alaska_--_The_Aurora_Borealis_above_Bear_Lake.jpg) / [Wikipedia, Moraine Lake](https://commons.wikimedia.org/wiki/File:Moraine_Lake_17092005.jpg) Note that Milestone 3 uses cropped versions of those images. They both look decent. Android Milestone 3 (sunset)-Milestone 5-0.9: [Flickr](https://flic.kr/p/4cq9Xg) This one is beautiful. Android 1.x-4.0.3: [Android source code](https://cs.android.com/android/platform/superproject/+/android-4.0.3_r1.1:frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.jpg;drc=03fcf855283080acb1822dad411a7a910c577418) Honestly, this one looks very washed out and overdone IMO. Android 4.0.4: [Android source code](https://cs.android.com/android/platform/superproject/+/android-4.0.4_r1:frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.jpg;drc=f4a014e335f7ca8f1ec054650dae216335348249) Looks very Googley. Android 4.1-6.0: [Android source code](https://cs.android.com/android/platform/superproject/+/android-6.0.1_r81:frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.jpg;drc=171a994bcdb73334a243cb1c0f78db5f835513f7) It looks quite nice, actually. Android 7.0-12.0: [Android source code](https://cs.android.com/android/platform/superproject/+/android-12.0.0_r34:frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.png;drc=57edeef91af5831e8903990acef5f690cb5cd05b) I've seen this one countless times, but it looks quite nice too. Android 12.1-14: [Android source code](https://cs.android.com/android/platform/superproject/+/android-14.0.0_r18:frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.png;drc=189d5d833358b8ee884c23f9eb5a5d650a03d6a0) It looks decent. Current: [Android source code](https://cs.android.com/android/platform/superproject/main/+/main:frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.png) As of writing this, same as 14, but it might change.