[webvtt] Pull Request: Add default color and background color names for applicable classes.

silviapfeiffer has just submitted a new pull request for https://github.com/w3c/webvtt:

== Add default color and background color names for applicable classes. ==
This brings in a capability to provide named colors and background colors
for captions and subtitles, matching what is being used by CEA708:
https://dvcs.w3.org/hg/text-tracks/raw-file/tip/608toVTT/608toVTT.html
I decided to add black and blue as per CEA708, but add a warning
to not use them on default background.

Closes #365

See https://github.com/w3c/webvtt/pull/395

Received on Sunday, 15 October 2017 05:41:40 UTC