Adding fonts via theme.json adds them to the library, but they are inactive (so they do not appear in the block editor properties). How can I activate them programmatically?

"typography": {
"fontFamilies": [
{
      "fontFamily": "Rubik",
      "name": "Rubik",
      "slug": "rubik",
      "fontFace": [
        {
          "fontFamily": "Rubik",
          "src": ["file:./assets/fonts/rubik.woff2"]
        }
      ]
    }
  ]
}

fonts added but inactive