[bug]: [registry item] cssVars.theme will not add the variables under "@theme" in globals.css

[bogris]

Describe the bug

I am writing a custom JSON that should add css variables for tailwind v4

using the "$schema": "https://ui.shadcn.com/schema/registry-item.json",
I am able to add light and dark variables, so this validates the cli config, globals.css finding, etc.

but the variables I define under css.Vars.theme have no effect.
To be even ore precise, running a JSON that has light / dark varaibles will output

{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "colors-blue",
  "type": "registry:style",
  "title": "test",
  "cssVars": {
    "theme inline": {
      "color-test": "var(--color2)"
    },
    "light": {
      "color-test": "colorLight"
    },
    "dark": {
      "color-test": "colorDark"
    }
  }
}

✔ Checking registry.
✔ Updating src/app/globals.css

but runnig a json only with theme:

{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "colors-blue",
  "type": "registry:style",
  "title": "test",
  "cssVars": {
    "theme inline": {
      "color-test": "var(--color2)"
    }
  }
}

will output:

✔ Checking registry.

it looks like the code is not triggered

Affected component/components

cli > add

How to reproduce

pnpm dlx create-next-app@latest
pnpm install tailwindcss @tailwindcss/postcss postcss
pnpm dlx shadcn@latest init
pnpm dlx shadcn@latest add http://localhost:3000/colors-blue.json

i have the json in my /public folder

Codesandbox/StackBlitz link

No response

Logs

System Info

MacOs 

packages installed are listed in the steps

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