I have an existing Android application that needs a thorough rebuild. Right now, dark mode simply refuses to activate, and the Settings button sits unresponsive, so those two issues are top priority. While we are in the codebase, I also want to seize the opportunity to make the app faster, refresh the user interface, and bolt on a few new features we have on our roadmap. Here is what I need delivered: • Dark mode activation fully functional across all screens, following Material Design guidelines. • Settings button restored so it reliably opens its intended screen and handles user input without crashes. • Noticeable performance optimization—startup time trimmed, scrolling smoother, and memory usage reduced. • A modern UI overhaul in line with the latest Android design patterns (feel free to suggest Jetpack Compose if that speeds things up). • Integration of the additional functionalities we will specify together once you review the current code. You will be working with the existing repository (Android Studio, Java/Kotlin mix). Clean, well-commented commits are important because this code will continue to evolve after your work is merged. A test APK plus source code will mark each milestone complete, and I will handle real-device testing on my end. If this sounds like a challenge you can tackle quickly and cleanly, let’s get started.