[ttml2] Pull Request: Improve opacity data type for animation interoperability (#974).

skynavga has just submitted a new pull request for https://github.com/w3c/ttml2:

== Improve opacity data type for animation interoperability (#974). ==
Closes #974.

See https://github.com/w3c/ttml2/pull/992

Received on Monday, 10 September 2018 15:41:44 UTC