Like this extension?
You'll probably like this as well: The Better Syntax Megapack
What does this do?
This will get you the bleeding-edge syntax highlighting for C. Which means your theme will be able to color your code better.
NOTE: The default VS Code theme does not color much. Switch to the Dark+ theme (installed by default) or use a theme like one of the following to benefit from the changes:
How do I use it?
Just install the VS Code extension and the changes will automatically be applied to all relevent files.
If you'd like to help improve the syntax, take a look at