Examine source code of Egami Search

{
  "manifest_version": 2,
  "name": "Egami Search",
  "version": "1.1.0",
  "description": "Right click to reverse image search.",
  "browser_specific_settings": {
    "gecko": {
      "id": "egami-search@mcaxiaz"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/icon.png",
    "96": "icons/icon@2x.png"
  },
  "developer": {
    "name": "MCAxiaz",
    "url": "https://github.com/MCAxiaz/egami-search"
  },
  "permissions": [
    "contextMenus"
  ]
}