Hi, I have just released my first app "Kolrs", and so any initial feedback is very welcome. The UI is still a bit plain in this initial release, but the functionality is okay I think. Basically you generate super sharp HD wallpapers (no JPEG encoding loss), using different effects (some are unique), and then set it instantly - no browsing and downloading needed. And you can instantly redo an effect by tapping in the middle of the screen - there are billions of combinations possible. For a future release, I am thinking to add an effect browser at the bottom, and possibly sliders for vignette and blur effect for those who want that control. Some effects still do needs tweaking, including the color schemes - but most of the generated wallpapers looks nice. Get it free on Google Play : Kolrs - HD Wallpapers App Thanks, any feedback is greatly welcome!