Examine source code of Khmer Chanketik

{
  "name": "Khmer Chanketik",
  "description": "Extension use to generate Khmer Chanketik Calendar",
  "version": "1.0.0",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "48": "image/logo-two.png"
    },
    "default_title": "Khmer Chanketik",
    "default_popup": "popup.html"
  }
}