Examine source code of billie eilish hmhas

{
  "name": "billie eilish",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Billie_Eilish_-_Hit_Me_Hard_and_Soft.png"
    },
    "colors": {
      "frame": "rgba(10, 21, 33, 1)",
      "tab_background_text": "rgba(194, 27, 27, 1)",
      "toolbar": "rgba(10, 21, 33, 1)",
      "bookmark_text": "rgba(194, 27, 27, 1)",
      "toolbar_field": "rgba(10, 21, 33, 1)",
      "toolbar_field_text": "rgba(194, 27, 27, 1)",
      "tab_line": "rgba(3, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{450d78f2-03b9-4257-b6b1-2d572c78431e}"
    }
  }
}