[folding] Distinctly highlight corresponding #endregion for #region X comments

[munael]

That would apply to all supported languages. But I considered it for Python only, and so may be missing something.

In python, standing on a #region marker highlights all #region tokens in the file, as is normal for other tokens in plain source and in comments.

Request: Apply a different highlighting rule (perhaps "line boxes" as is applied to matching brackets/parentheses/braces) to the #endregion corresponding to the #region under the cursor, to make clear the region's boundary.

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• JavaScript/TypeScript region folding with //region does not work (#66329)
• Add region markers folding for Go (#69899)
• region navigator (#51738)