Examine source code of StockTrack.ca plugin

{
  "name": "StockTrack.ca plugin",
  "version": "0.2.4",
  "description": "StockTrack.ca plugin to help find inventory Walmart, CanadianTire, BestBuy, HomeDepot, Staples and other Canadian stores.",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://*.walmart.ca/*/ip/*",
        "https://*.canadiantire.ca/*/pdp/*",
        "https://*.bestbuy.ca/*/product/*",
        "https://*.homedepot.ca/product/*",
        "https://*.staples.ca/products/*",
        "https://*.thesource.ca/*/p/*",
        "https://*.thebay.com/*/product/*",
        "https://*.lowes.ca/product/*",
        "https://*.rona.ca/*/*",
        "https://*.renodepot.com/*/*",
        "https://*.sportchek.ca/*/product/*",
        "https://*.atmosphere.ca/*/product/*",
        "https://*.toysrus.ca/*/*.html",
        "https://*.ebgames.ca/*/*/*"
      ],
      "js": [
        "stocktrack.js"
      ]
    },
    {
      "matches": [
        "https://*.stocktrack.ca/*"
      ],
      "js": [
        "install_notifier.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    "images/icon-32x32.png"
  ],
  "icons": {
    "32": "images/icon-32x32.png",
    "128": "images/icon-128x128.png"
  }
}