Inconsistent code highlighting

[ghost]

I've just updated my first blogpost and the code highlighting seems to be looking for js.cpp or in the last block of the page js.cs. I expect I need to update the theme a little bit to use R highlighting, however I find it strange that it is using two different highlighting themes.

Repo is here

Any tips on how to 'force' highlighting to pick up the correct highlight style would be super too.

[ghost]

I actually had a look at how highlighting has been applied in the default theme supplied when using create_site() and have replicated things there. All working now.