Low contrast for enum names when semantic tokens are enabled (Rust)

Since Zed added official semantic tokens support for syntax highlighting, when enabled, rose-pine's color selection for enum names in Rust isn't good as it's very low contrast, and inconsistent with struct names.

Zed (latest with "semantic_tokens": "combined"):

VS Code:

I don't like how the enum name (ColorTest) is this dark. It's harder to scan the code, as it just blends in with regular keywords. struct names look good, so this is almost certainly unintended.

Start by locating the theme rules that control Rust enum and struct names when Zed semantic tokens are enabled. Compare the enum-name color with struct names and the provided VS Code reference; done means enum names have readable contrast and are visually consistent with struct names.