UnoCSS version

v66.6.0

Describe the bug

It seems like

 presetWind4({
      preflights: {
        theme: "on-demand"
      }
})

doesn't work in Svelte scoped when built which isn't great as it's the default option.

Reproduction

Repro:
https://github.com/henrikvilhelmberglund/unocss-svelte-scoped-presetwind4-example

1. nr dev
   Works fine.
2. nr build && nr preview
   Looks messed up.
3. Set theme: true
   Looks fine again.

System Info

Win10, Brave, Svelte-scoped

Validations

• Read the Contributing Guidelines.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.