[ttml2] What is the painting order for image, text, backgroundImage and backgroundColor?

nigelmegitt has just created a new issue for 
https://github.com/w3c/ttml2:

== What is the painting order for image, text, backgroundImage and 
backgroundColor? ==
In the case that a `span`, for example has more than one of:

* non-transparent `tts:backgroundColor`
* text content
* a tts:backgroundImage
* an `<image>` child (i.e. a "foreground" image)

what is the painting (z) order? Or better yet, where is the painting 
order specified?

Please view or discuss this issue at 
https://github.com/w3c/ttml2/issues/228 using your GitHub account

Received on Friday, 16 December 2016 18:27:21 UTC