Worked on the GetStream/stream-chat-flutter repository, focusing on enhancing the chat UI experience through targeted feature development and UI refinement. Delivered a new customization option for the StreamChannelHeader widget, enabling flexible branding by supporting a bottom widget and adjustable opacity. Addressed UI consistency in StreamCommandAutocompleteOptions by correcting emphasis and color for command names and updating divider colors, improving visual clarity for end users. All changes were linked to relevant pull requests for traceability and maintainability. Utilized Flutter and Dart to implement these improvements, demonstrating attention to both developer experience and end-user interface quality within a concise project timeframe.