During December 2024, Junho focused on stability and correctness in the carbonated-dev/o3de repository, addressing a critical bug affecting ABGR colorization in TextMarkup on Apple platforms. Using C++ and platform-specific development techniques, Junho corrected the color component swap by reassigning values with GetX(), GetY(), and GetZ(), ensuring accurate color rendering across macOS and iOS. This fix resolved compiler-related issues and reduced user-reported color discrepancies in the UI. Junho validated Apple builds to confirm the solution’s effectiveness, prioritizing build health and cross-platform visual fidelity. The work demonstrated depth in debugging and platform adaptation, though no new features were shipped.