I’m building a focused Android app that takes the wallpaper-editing portion of “DIY Wallpaper Collage Craft” and turns it into a streamlined, stand-alone experience. No collage maker or cut-out tool is needed—just a smooth, modern interface dedicated to personalizing wallpapers. Core scope I need a production-ready Android Studio project (Java or Kotlin) that lets users import an image and then apply three customization capabilities: • Color adjustment – basic hue, saturation, brightness sliders with realtime previews. • Pattern design – overlay repeatable patterns (stripes, dots, grids) with adjustable scale and opacity. • Text overlay – add multiple text layers; choose font, size, color, shadow, and position via drag-and-drop. Key expectations • Clean, modular code that follows Material guidelines and compatible down to API 23. • All processing must be done on-device; no server calls. • Export final artwork to common resolutions and set it as the device wallpaper directly from the app. • Provide clear build/run instructions plus a short README covering third-party libraries (if any). I’ll test by installing the APK on a physical device and checking that each customization option behaves smoothly, previews update instantly, and the saved wallpaper matches the preview. Once those criteria pass, the milestone is complete.