Erich enhanced the visual fidelity of the Teapot example in the mrdoob/three.js repository by refining both lighting and material shading to better align with realistic rendering goals. Using JavaScript and leveraging 3D graphics and WebGL expertise, he adjusted ambient and directional lighting and updated glossy material properties, including color, specular highlights, and shininess, to restore the intended appearance. The work addressed a specific design issue and included updating screenshot assets to reflect the improvements. Erich’s contributions demonstrated a focused, end-to-end approach to feature delivery, with traceable commits and asset updates that improved the developer experience for core Three.js demos.