additional content, which users may use in addition to or instead of the default content[Is it the case the supplemental content is not an alternative version or a text alternative? What is the relationship between supplemental content and text alternatives?????], that illustrates or clarifies the default content
Example: Examples of supplemental content may include text, images and audio.
[Do we nNeed a definition of Default Content?
Do URIs for the supplemental content need to be supplied within the claim?
Does supplemental content need to be an explicit part of the scope?]
Thank you for pointing out the overlap between these two terms. We have revised the definition to read, "additional content that illustrates or clarifies the primary content" and have added a series of examples to help clarify the issue. We have also modified the success criterion to allow for both supplemental content and alternative versions.