# Documentation > Selected Engineer ApS work demonstrating Documentation — the achievements that prove it. - [Replaced 27 rendered font sizes whose nearest neighbours were 0.6% apart with a six‑step Major Third scale, and wrote the linter that fails the twenty‑eighth.](https://brand.engineer.company/portfolio/replaced-27-font-sizes-with-a-six-step-scale-129/) - [Closed the colour system at 28 documented colours with a linter that fails a value painted but undocumented, documented but unpainted, mis‑measured, respelled as a literal, or within a perceptual distance of 0.02 of one already there.](https://brand.engineer.company/portfolio/closed-the-colour-system-at-28-colours-133/)