Worked on the typst/typst repository to address a rendering reliability issue affecting box corner radii when strokes were present. By implementing a geometry calculation that clamps the corner radius based on available stroke widths, the solution eliminated visual artifacts and ensured consistent rendering across documents. This fix improved the fidelity of layouts and contributed to more reliable automated rendering pipelines for Typst templates. The work required a strong understanding of graphics rendering and Rust programming, focusing on precise control of visual elements. Although no new features were added, the targeted bug fix enhanced document appearance and user trust in rendered outputs.