During January 2026, Coldys focused on enhancing the file upload interface within the GIScience/sketch-map-tool repository. They delivered a feature that improved the Filebokz File Upload UI by ensuring file previews displayed with a transparent background and inherited text color, resulting in greater visual consistency and usability. Using CSS and front end development skills, Coldys implemented a targeted color override fix to maintain consistent preview colors for uploaded files. The work was concise and well-scoped, with clear commit messaging that improved traceability. Although the contribution was limited in scope, it demonstrated attention to UI detail and maintainability within the project.