Worked on the linebender/vello repository to address a rendering issue affecting COLR glyphs in Rust-based graphics pipelines. Focused on improving correctness, the developer removed an extra scaling transformation in the vello_common library, eliminating double-scaling and enabling non-uniform bounding-box scaling for glyphs. This adjustment reduced visual artifacts and ensured accurate per-glyph transforms, aligning vello’s COLR rendering path with parley_draw for consistent output across CPU pipelines and non-hinted glyphs. Collaborated closely with another contributor to co-author the fix, demonstrating strong software debugging and graphics programming skills while enhancing rendering accuracy as verified by updated snapshot tests.