Examine source code of Spawn Header

{
  "name": "Spawn Header",
  "manifest_version": 2,
  "version": "1.1resigned1",
  "theme": {
    "images": {
      "theme_frame": "0 Spawn exp 2b.jpg"
    },
    "colors": {
      "frame": "rgba(3, 3, 3, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(5, 5, 5, 0.06)",
      "bookmark_text": "rgba(91, 235, 65, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c5e54e89-dea3-4e09-90fb-fa717b42c7a9}"
    }
  }
}