Examine source code of Deep Dive

{
  "manifest_version": 2,
  "name": "Deep Dive",
  "version": "0.2.2",
  "description": "Deep link to any text on the web.",
  "icons": {
    "48": "icons/deep-dive-48.png",
    "96": "icons/deep-dive-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dive.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "link.js"
    ]
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{19e990bf-5a80-44da-8d6e-aa251b8ba9fc}"
    }
  }
}