Arthur Araujo contributed to the ppy/osu repository by delivering a targeted UI/UX improvement to the editor’s timeline feature. He adjusted the timeline blueprint’s color intensity from 0.9f to 0.6f using C#, reducing visual prominence and enhancing clarity for content creators during editing. This change was implemented through a focused, traceable commit, reflecting careful code-level modification and strong Git discipline. Arthur’s work in game and UI development addressed the need for a cleaner editing environment, resulting in smoother workflows and reduced visual noise. Over the month, he demonstrated precise engineering skills, though his contributions were limited to a single feature.