Callout and Syntax Highlighting in code blocks

[GitHub2022]

Hi,

i am using Apple M1, vscode and this plugin.

I am using the following highlighter, since all the other options are not available (The valid options for are coderay, prettify, and pygments)
:source-highlighter: highlight.js

In vscode i can not see that the callouts are not rendered properly in the preview. Why is that? Should it be like that?

Also i can not make any additional highligthings within the code block. For example bold for one line or changing the background color for a specific line to make it visible what changed between code blocks.

Is there any way to do it?