Markdown configuration for shiki doesn't accept `defaultColor: false`

[madcampos]

Astro Info

Astro                    v4.9.2
Node                     v20.14.0
System                   macOS (arm64)
Package Manager          npm
Output                   static
Adapter                  none
Integrations             @vite-pwa/astro-integration
                         @astrojs/sitemap
                         astro-icon

If this issue only occurs in one browser, which browser is a problem?

No response

Describe the Bug

The configuration for markdown doesn't do anything if we set defaultColor to false. According to Shiki's docs it should remove the inline styling on code blocks.

What's the expected result?

Code blocks to have no default style when the setting is set.

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-shehh9?file=astro.config.mjs

Participation

• [x] I am willing to submit a pull request for this issue.

[ascorbic]

The shikiConfig options don't accept every option supported by codeToHtml, because they're not passed through as-is. It could in theory support more of them. Currently this is implemented here.

[madcampos]

Got some help with this issue, will submit a pull request with a fix :)

[ematipico]

FYI this won't be considered a fix but a new feature