Tarek Chafroud developed watermark support for the shaka-project/shaka-player repository, enabling both static and dynamic overlays within the Shaka Player UI. He implemented this feature using JavaScript and HTML5 Canvas, allowing publishers to customize watermark appearance and position to enhance content security and branding. Tarek ensured seamless integration with existing UI components while maintaining optimal load times and memory usage. His work addressed the need for flexible watermarking to support diverse monetization and security requirements. By focusing on front end development and UI engineering, Tarek delivered a robust foundation for future branding and content protection features within the player ecosystem.