The acquisition of TextMesh Pro allowed for further development of Unity's UI offerings by enabling more performant, higher-quality text rendering. After integrating TMP into Unity's codebase, I worked with its developer to continue adding functionality — including emoji support, additional font features requested by users, and the Emoji 11 standard required by Google.
The foundation of Unity's next UI text system, built on top of UI Toolkit, was derived from TMP. The core design patterns of shaping text (translating character codes into arranged glyphs), layout, rasterizing, and rendering are all still present with minimal modification — a testament to the strength of the original architecture.