I've been working on a project that has a lot of blocks and libraries, and I noticed that the "group" block doesn't handle symbols correctly.
It's supposed to look like this:
dictionary key: [] value: [] @delInput@verticalEllipsis@addInput::reporter rgb(66,73,92) (Snapblocks)
And when it's expanded, it should look like this:
$$$$$$$$$$$$$$$ key: [] value: []\
dictionary key: [] value: []\
$$$$$$$$$$$$$$$ key: [] value: []@delInput@verticalEllipsis@addInput::reporter rgb(66,73,92) (Snapblocks)
but it only looks like this:
Unfortunately you can't have a special code for a symbol (e.g. $nl) with a text in the same label. Snap doesn't separate the "$nl" and the "key" in your case, leaving it as "$nl key" causing it to debold instead. Hopefully this will be changed in the future (but I'm sure that there are other things that are a higher priority for the Snap team).