Mohd Fawah Khan worked on enhancing the nix-security-tracker repository by improving brand consistency and user interface polish. He focused on aligning the header and footer with NixOS brand colors, introducing an accessible color variable, and embedding the NixOS logo in the header to strengthen visual identity. Using CSS, HTML, and Nix, he implemented these changes through targeted stylesheet updates and header markup adjustments, ensuring the logo asset was reliably fetched and integrated during the Nix build process. The work addressed UI consistency and accessibility, resulting in a more cohesive and recognizable interface, though the scope was limited to a single feature.