Examine source code of Window Layout Resizer

{
  "manifest_version": 2,
  "name": "Window Layout Resizer",
  "description": "Resize the current window into different customizable layouts (Multiple monitors are supported).",
  "version": "0.1.5",
  "icons": {
    "16": "Content/Images/16.png",
    "24": "Content/Images/24.png",
    "32": "Content/Images/32.png",
    "64": "Content/Images/64.png",
    "128": "Content/Images/128.png"
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "Scripts/Resizer.js",
      "Scripts/background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "storage",
    "system.display",
    "notifications"
  ],
  "homepage_url": "https://add0n.com/layout-resizer.html",
  "commands": {
    "resize0": {
      "description": "Resize to template #1"
    },
    "resize1": {
      "description": "Resize to template #2"
    },
    "resize2": {
      "description": "Resize to template #3"
    },
    "resize3": {
      "description": "Resize to template #4"
    }
  }
}