Arthur developed a Detective Code Highlighting Extension for Reveal.js within the slowkow/quarto-web repository, focusing on enhancing code snippet readability in presentations. He introduced a new configuration entry using YAML, allowing users to enable advanced code highlighting features directly through configuration management. The extension was implemented and documented through Git-based collaboration, demonstrating proficiency in front-end extension development and integration with Reveal.js. By automating code highlighting, Arthur addressed the challenge of manual formatting, enabling consistent and clear code visualization across presentation decks. His work improved documentation workflows and showcased a solid understanding of configuration-driven features and collaborative version control practices.