This PR applies a number of field renames in the `ThemeColors` struct
from the `import-theme` branch.
This will help prevent this branch from diverging too far from `main`.
Release Notes:
- N/A
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Co-authored-by: Nate Butler <iamnbutler@gmail.com>
Co-authored-by: Marshall Bowers <1486634+maxdeviant@users.noreply.github.com>