Examine source code of Kerses

{
  "name": "Kerses",
  "version": "0.1.2",
  "description": "Display similar articles and main points right in your browser window, without ever having to leave the page",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Kerses",
    "default_popup": "popup.html"
  },
  "permissions": [
    "contextMenus",
    "https://kerses.com/*",
    "http://*/*",
    "https://*/"
  ],
  "web_accessible_resources": [
    "kerses.css",
    "kerses_logo_mini_128.png"
  ],
  "icons": {
    "16": "kerses_logo_mini_128.png",
    "128": "kerses_logo_128.png"
  },
  "manifest_version": 2
}