How to color code in-line HTML

How can I get my in-line HTML to color code as it does in the Arduino IDE?
This is PlatformIO:
In-line HTML

And this is Arduino IDE
Cloud HTML

Thank you in advance for your help.

Syntax highlighting is not done by PlatformIO, but by the standard Microsoft’s C/C++ extension. The Arduino 2.0 must be doing something special to achieve this. Can you file an issue in Issues · platformio/platformio-vscode-ide · GitHub for this?