[ttml2] Pull Request: Add #image-png-hdr-pq feature (#695).

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

== Add #image-png-hdr-pq feature (#695). ==
Closes #695.

See https://github.com/w3c/ttml2/pull/816

Received on Thursday, 7 June 2018 17:39:45 UTC