Alex Muelas focused on enhancing the user interface reliability of the mehah/otclient repository, specifically addressing a bug in the cooldowns window. By updating the Lua-based loadIcon function to return the spell name and ensuring onSpellCooldown used this value for tooltips, Alex improved the clarity of spell tracking for users hovering over cooldown icons. The work was carefully scoped to the cooldowns UI module, minimizing risk and simplifying validation through targeted QA checks. With a background in game development and UI development, Alex delivered a well-documented, user-facing fix that increased transparency and usability without introducing broader changes to the codebase.