Why is syntax highlighting different when added via tag or via <!-- language: lang-XXX -->

Question

Take this answer where the tag VBA is used. The system recognizes the tag and automatically turns on syntax highlighting. So far so good.

Today I answered another question where no syntax highlighting was enabled. I tried to enable it myself with <!-- language: lang-VBA -->. It worked.

But they seem to be different. Here's a direct comparison:

^{via <!-- language: lang-VBA -->}

^{via tag VBA}

My question is: What's the reason behind this? Is it intentional?

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Edit as reply @Sathya

Either I'm too dumb or we have a misunderstanding here. Let's make an experiment and play around with this answer

VBA comment: First, we insert <!-- language: lang-VBA --> and have a look at the preview after some seconds.

VB comment: Next we change <!-- language: lang-VBA --> to <!-- language: lang-VB -->. Wait some seconds between your actions.

VBA tag: In the last step, we remove the comment completely. Again, wait some seconds and click somewhere else

As I see it, there is no difference between applying <!-- language: lang-VBA --> or <!-- language: lang-VB -->. Both methods result in the same highlighting. Or am I blind?

In comparison the last try where nothing is inserted has a completely different result. That's where the tag VBA from the question itself takes effect

Answer 1

Since you haven't mentioned the other question, the only answer you'd posted to day was this.

On this answer, the question is tagged with vba. Looking at the tag definition, the syntax highlighting language is set as vb, so the prettifier <!-- language: lang-vb --> why is why you see the highlighting as in the second image.

On your today's answer, the question originally didn't have vba, so no syntax highlighting was applied.

Then, you forced <!-- language: lang-VBA --> which has different colour syntax highlighting than <!-- language: lang-vb --> which is applied to the first question.

hence, the difference. See the revisions here to see how the highlighting changes