Syntax highlighting for GREL

I am amazed that GREL expressions end up being syntax-highlighted, for instance in this post. Isn’t it ironic that this works out of the box here, while OpenRefine itself does not even have that? :face_with_open_eyes_and_hand_over_mouth:

Anyway, if you have any thoughts about this, this is issue #153


Would be v much in favour. Even better would be formatting as well and managed indentation for python and bracket matching for grel

The linked post is using the JavaScript syntax highlighting which for GREL works fine most of the time.