I think with the default output being escaped, sphere is displaying code snippets escaped making them hard to read. It looks like the wiki/md markup is working as it wraps code properly when placed in ` but still escaped.
Yeah, Sphere needs some love ^^
There is a nice MarkDown li3 library which seems to work for me.
Here are the libraries in use. https://github.com/UnionOfRAD/sphere/tree/master/libraries
Wow, two years is a long time.