Fix 👩

[wmedrano]

Have

Want

Issue

• https://github.com/googlefonts/fontations/blob/main/skrifa/src/color/traversal.rs#L344 adjusts colors stops to start at 0.0.
  • 👩 does not start at 0
  • In this case, the simple radial gradient is converted to one with a proper focal point. However, tiny_skia doesn't support the focal radius which leads to weird artifacts.
    • tiny_skia bug Text rendering linebender/tiny-skia#1 (comment)
  • Oddly... not doing the color stop correction produces a better image. This is why the woman emoji going through the https://github.com/googlefonts/nanoemoji/blob/main/tools/colr2svg.py -> svg -> resvg (tiny_skia) works fine

Proposals

• Hack: Do not normalize color stops, which maybe aligns fine with nanoemoji/svg/tiny_skia? in practice
• Good fix: Proper gradient support in tiny_skia

[wmedrano]

Status

• Support has been added to tiny-skia Add support for sweep gradients linebender/tiny-skia#166
• Have a branch with the fix in.

Next Steps

• Send fix out once tiny-skia has new release

[wmedrano]

Resolved by #77