Hello,
As of now, Visual Studio Code does not natively support TIE syntax highlighting. If an extension for TIE exists, you can search for it in the VS Code Extensions Marketplace by opening VS Code and pressing Ctrl+Shift+X, then searching for "TIE".
If no extension is available, you can create a custom syntax highlighter using TextMate grammars and package it as a VS Code extension. Refer to the VS Code Syntax Highlight Guide for detailed steps.