No colour for C-style enums

There is no colour for C-style enums which makes code look weird. I'm not familiar with vscode theming but may be there is a lack of C/C++ semantic knowledge so perhaphs you can use [Enhanced colorization](https://code.visualstudio.com/docs/cpp/colorization-cpp) feature.
There is an example of some Vulkan code:

Applying colour to enum value makes difference:

Start with the linked VS Code Enhanced colorization documentation and inspect the theme's existing C/C++ color rules; the issue names no source file or test. Confirm how enum values are currently tokenized and define done as C-style enum values receiving a distinct color in the shown Vulkan example.

Written by the indexing model from the issue text.