So, there's Skia. Skia is a high-level library that converts texts to glyph indices, does high-level text layout, and caches glyphs (and it also makes GPU calls). But the actual parsing of the font file and converting glyphs to bitmaps happens below in FreeType.

Skia is made in C++. It's made by Google.

There's FreeType. It actually measures and renders glyphs, simultaneously supporting various antialiasing modes, hinting, kerning, interpreting TrueType bytecode and other things.

FreeType is made in C. It's not made by Google.

Question: why was it FreeType that got a Rust rewrite first?