It's great to see extensions such as this. However I would very much like to see a more generic approach: support for plain html rendering of Strings!
The idea is to provide arbitrary html-markup to a (domain object's) String property, which then is rendered 'as is' by the ISIS framework.
When (in 2016) I started to work on projects using ISIS, I was wondering why there is no such feature. I implemented my own value-type to compensate for it.
To my surprise, this 'plain html rendering' integrates very well with ISIS, meaning there are no painful rendering issues. (see screenshots)