This extension aims to improve the default C# grammar that comes with VS Code by making it more accurate and granular.
Features
In object creation expressions (e.g., new Foo()), the object name is tokenized as a class name (entity.name.type.class.cs)
Enum access expressions (e.g., Foo.Bar) receive more accurate tokenization if they're cased according to standard conventions (PascalCase for the enum and its members) (entity.name.type.enum.cs for the enum, and entity.name.variable.enum-member.cs for the member)
In object access expressions (e.g., foo.bar.Baz()), the object name will be tokenized as a static class if PascalCase (entity.name.class.static.cs)
Numeric constants receive more granular tokenization:
Decimal points are tokenized as punctuation (punctuation.separator.decimal.cs)
Type suffixes (e.g., the f in 3.141f) are tokenized as keywords (keyword.numeric.type.cs)
Exponent prefixes (e.g., the e in 3e10) are tokenized as keywords (keyword.numeric.exponent.cs)
Method definitions and invocations receive specific scopes in addition to the generic entity.name.function.cs (meta.definition.method.cs and meta.function-call.cs respectively)
