VS Code Semantic Highlighting, or "Why are some vars green and some blue?!"
Yet again staring at VS Code and wondering why "yaml" is blue and "toml" is green. Maybe toml is better? VS Code is clearly communicating some information with the coloring but it wasn't totally apparent.
Some googling led to the semantic token classification and a way to inspect said tokens:
Open the command palette, run "Developer: Inspect Editor Tokens and Scopes" and click around to see details on each token.