HarfBuzz 13 ships with the new `hb-raster` library. You might ask why yet another Open Source rasterizer when there are many high-quality ones available.

`hb-raster` fills two gaps in the Open Source font rasterization scene:

1. Many graphics-oriented frameworks & mobile apps don't want to include the entirety of FreeType to get gain text rendering. Many resort to `stb_truetype`, which doesn't support variable fonts, and crashes on bad font data. `hb-raster` addresses both of these issues.

2. Before `hb-raster`, rendering COLRv1 fonts was not possible without whipping up your own renderer, or pull in Cairo or Skia, both of which are otherwise unnecessary for many clients. `hb-raster` renders COLRv1 and SVG color fonts natively, & soon bitmap-based color-fonts too.