This PR updates the `ThemeStyles` struct to use the `Refineable` trait
instead of a custom declarative macro for generating refinements.
Release Notes:
- N/A
This PR removes the old `Theme` definition in favor of the new
`ThemeVariant`s.
The new `SyntaxStyles` have been reverted to the old `SyntaxTheme` that
operates by storing the syntax styles as a vector of
`gpui2::HighlightStyle`s.
This is necessary for the intended usage by `language2`, where we find
the longest key in the theme's syntax styles that matches the capture
name:
18431051d9/crates/language2/src/highlight_map.rs (L15-L41)
This PR reworks the theme definition in the `theme2` crate to be based
off of the new theme work that @iamnbutler has been working on.
We're still developing the new theme system, but it is complete enough
that we can now load the default theme and use it to theme the storybook
(albeit with some further refining of the color palette required).
---------
Co-authored-by: Nate Butler <iamnbutler@gmail.com>
Co-authored-by: Marshall Bowers <marshall@zed.dev>
