[imsc] Pull Request: Clarify the limits of Active Area per its syntax

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

== Clarify the limits of Active Area per its syntax ==
Close #288 

See https://github.com/w3c/imsc/pull/298

Received on Tuesday, 16 January 2018 15:49:53 UTC