I went to Multipart nodes with multipart subparts — style issue and the questions syntax never colorized (if that is even a term to use). I then went to another post and the syntax there was fine. I went back to the post and waited 5 mins but it stayed grayish.
I am not sure if it is just me or others are experiencing this too with this post.
Not a bug: a feature :-) The code was marked up not using Markdown (4 space indent) but using <pre> tags. That turns off the automatic syntax highlighting: I've edited and all should be fine now.
code before, what is more known set with backticks …
<pre>…</pre> it is marked up as a whole code block with grey background, something what is more prominent to be done with including in backticks.