Examine source code of Firecracker jinx

{
  "name": "Firecracker jinx",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Firecracker jinx.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 0)",
      "tab_background_text": "rgba(175, 8, 8, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(175, 8, 8, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.48)",
      "toolbar_field_text": "rgba(93, 188, 72, 1)",
      "tab_line": "rgba(175, 8, 8, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{87a0da33-2648-4f3d-ab54-6545267d2a04}"
    }
  }
}