Ideally would match our tokens for VS Code, but more importantly it should follow whatever is standard for intelliJ

This will allow the editor to be themed properly with third party themes.

For example:

• type and condition names should match class
• relation name should match method on class
• keywords should match keywords
• comments should match comments
• symbols should symbols
• schema version, module name, directly assigned, computed userset, tupleset should match strings