[imsc] Pull Request: Limit number of tts:textShadow <values> to 4

palemieux has just submitted a new pull request for https://github.com/w3c/imsc:

== Limit number of tts:textShadow <values> to 4 ==
Closes #407

See https://github.com/w3c/imsc/pull/408

Received on Thursday, 28 June 2018 14:48:35 UTC