Re: Contributing COLRv1

[Dominik Röttsches]

Hi Alexei,

On Wed, Jan 13, 2021 at 7:45 PM Alexei Podtelezhnikov
<apodtele@gmail.com> wrote:
>
> Hi Dominik,
>
> On Wed, Jan 13, 2021 at 12:15 PM Dominik Röttsches <drott@chromium.org> wrote:
> > Currently we have a test pipeline as part of
> > https://github.com/googlefonts/nanoemoji that builds a COLRv1 font
> > from SVG images, ...
>
> Since you brought up SVG, can you clarify the rationale behind COLRv1?
> Is the main goal here to circumvent the SVG table parsing, which seems
> too heavy for fonts?

We see several benefits with this format: It integrates with contour
definitions from glyf and CFF2 tables and thus enables OpenType
variations for a vector color font format for the first time. It's
also a very compact definition that demonstrates size benefits in our
preliminary testing. You might be interested in this lightning talk I
did for BlinkOn 13: https://www.youtube.com/watch?v=6Wgh5x7mLSM&t=50s
The lightning talk is based on materials made together with Rod
Sheeter and Cosimo Lupo and was originally held as a talk on the 44th
Unicode conference.

Dominik