Lichen Liu focused on stabilizing WebGL2 initialization for iOS simulators within the AvaloniaUI/angle repository, addressing a rendering failure that impacted cross-platform testing. By implementing a simulator-specific check during the configuration of graphics capabilities in the Metal backend, Lichen ensured that the maximum vertex output components were set correctly for simulator environments. This Objective-C++ solution improved the reliability of WebGL2 rendering paths and reduced debugging time for both QA and development teams. Drawing on expertise in graphics programming, Metal API, and iOS development, Lichen’s targeted bug fix enhanced testing fidelity and contributed to more consistent cross-platform rendering behavior in simulator workflows.