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, maintaining performance standards for load time and memory usage. His work addressed publisher needs for flexible content protection and monetization, laying a foundation for future branding features. The project demonstrated depth in front end and UI development, focusing on practical solutions for real-world media streaming requirements.