During a one-month period, this developer enhanced the Cambly/syntax repository by implementing a targeted user interface update for voice mode. The work focused on adding fullscreen and fullscreen-exit icons to clarify controls during voice sessions, directly addressing a design issue and improving accessibility. Using React for front end development and working with both JavaScript and TypeScript, the developer contributed changes through Git-based collaboration. The update aligned with established design guidelines and improved the overall user experience by making voice mode controls more intuitive. No bug fixes were recorded during this period, with efforts concentrated on this single feature enhancement.