[ttml2] Pull Request: Remove #background-color designator; update #backgroundColor (#455).

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

== Remove #background-color designator; update #backgroundColor (#455). ==
Closes #455.

See https://github.com/w3c/ttml2/pull/524

Received on Saturday, 30 December 2017 03:46:05 UTC