Flutter App UI Refresh & bug Fixes

I need a reliable Flutter developer to give my existing mobile app a quick visual polish and clear out a few lingering bugs. The priority on the design side is refreshing our graphics: the main app icon as well as several background images need to be replaced with new assets I will supply. Please ensure they render crisply on every common device density and appear correctly in both Android launcher and in-app screens.

Alongside the graphic swap, I’d like you to track down and solve the minor issues users have reported (occasional crashes on login and a misaligned toolbar on tablets). No new features are required—just clean, well-commented fixes that keep the current functionality intact.

Deliverables
• Updated app icon integrated into the build
• All specified background images replaced and verified on multiple screen sizes
• Source code commits showing each bug fix with clear notes
• Signed, install-ready APK (debug & release) demonstrating the stable, refreshed app
AND upload on store

I work in Git so please be comfortable issuing pull requests. If you can wrap this up quickly without bloating the bundle size, we’ll have more cycles together.