I need a lightweight refresh of my existing Android mobile app—nothing from-scratch and no new feature work. The task is strictly to update the current user interface so it feels more polished and modern while keeping all underlying functionality exactly as it is today. Here’s what I expect: • Adjust colours, fonts, and spacing so screens look consistent. • Tidy up icons and buttons where the current assets appear dated or misaligned. • Re-compile and provide an APK plus source code with your changes clearly commented. The codebase is in Android Studio (Java/Kotlin mix). Please work within the existing project structure; I’m looking for quick turnaround rather than a full redesign.