Examine source code of linker

{
  "manifest_version": 2,
  "name": "linker",
  "author": "sadhukhanr",
  "description": "linker: quick links!",
  "homepage_url": "https://github.com/sadhukhanr/linker",
  "version": "1.0.0",
  "background": {
    "scripts": [
      "./src/js/service.js",
      "./src/js/index.js"
    ],
    "page": "./index.html"
  },
  "icons": {
    "16": "src/icon/icon.png",
    "48": "src/icon/icon.png",
    "128": "src/icon/icon.png"
  },
  "browser_action": {
    "default_icon": {
      "48": "src/icon/icon.png",
      "64": "src/icon/icon.png"
    },
    "web_accessible_resources": [
      "src/icon/icon.png"
    ],
    "default_popup": "./index.html",
    "default_title": "linker"
  },
  "developer": {
    "name": "sadhukhanr",
    "url": "https://github.com/sadhukhanr"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5b879697-ce35-4686-8a44-d34d2b921573}"
    }
  }
}