Arthur Araujo contributed to the ppy/osu repository by delivering a targeted UI improvement for 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 modifications and disciplined use of Git. Arthur’s work demonstrated skills in both game and UI development, resulting in a cleaner editing interface and smoother workflow. While no bugs were addressed during this period, the feature delivered measurable improvements to editor usability and visual efficiency.