This PR extracts the `Story` component into a separate `story` crate so
that it can be shared among various crates that define stories.
Release Notes:
- N/A
---------
Co-authored-by: Nate Butler <iamnbutler@gmail.com>
When this feature is set the `themes` module won't be compiled.
This allows us to run the `theme_importer` even when the `themes` module
has compile errors in it.
This PR reworks the way we define our third-party themes to make them
work as overlays on top of a base theme.
We introduce the concept of a `UserThemeFamily` that contains
`UserTheme`s. Rather than being an entire theme definition on their own,
a `UserTheme` just contains optional overrides for the values in a
`Theme`.
When resolving a `UserTheme`, we apply it on top of the base theme. Any
values not overridden in the `UserTheme` will fall back to the `Theme`
defaults.
Right now we are just using `UserTheme` to model third-party themes that
we distribute with the Zed binary. However, this same structure can also
be used to import arbitrary user themes (such as from a theme registry,
or even a theme blob from the settings file).
Release Notes:
- N/A
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>
