Worked on the jarun/nnn repository to address a terminal rendering issue affecting video preview workflows in the Kitty terminal. Delivered a targeted shell scripting fix that clears stale graphics placements when users switch away from video previews, resolving graphical artifacts and ensuring a clean terminal user interface. Focused on terminal user interface development, the solution was implemented with disciplined commit messaging and scoped changes to minimize risk. This work improved UI reliability and reduced potential support overhead by eliminating visual glitches, demonstrating attention to detail and a methodical approach to maintaining smooth user experiences in shell-based terminal environments.