Examine source code of GitLab Editor Popout

{
  "manifest_version": 2,
  "name": "GitLab Editor Popout",
  "version": "0.2resigned1",
  "description": "Open files in your editor straight from GitLab diffs.",
  "icons": {
    "32": "icons/gitlab-32.png",
    "48": "icons/gitlab-48.png",
    "96": "icons/gitlab-96.png",
    "128": "icons/gitlab-128.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/gitlab-32.png",
    "default_title": "GitLab Open in Editor",
    "default_popup": "popup/settings.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fe0a6b8f-1659-4893-87ac-22e879849fd6}"
    }
  }
}