[ttml2] Clarify dependency on CSS3 Color

nigelmegitt has just created a new issue for https://github.com/w3c/ttml2:

== Clarify dependency on CSS3 Color ==
See w3c/ttml2#370

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/1008 using your GitHub account

Received on Friday, 28 September 2018 15:09:14 UTC