Worked on the bitfireAT/davx5-ose repository to update promotional app screenshots, ensuring all marketing materials accurately reflected the latest Android user interface across multiple device profiles. Focused on app store optimization, the work involved generating and validating UI assets to match current product visuals, reducing the risk of user confusion and misrepresentation in promotions. Leveraged Git for disciplined version control and asset traceability, referencing explicit commits and pull requests for quality assurance. No major bugs were reported during this period, allowing for concentrated effort on asset alignment and cross-device consistency using Android UI conventions and image processing tools.