Examine source code of Binod Filter

{
  "manifest_version": 2,
  "name": "Binod Filter",
  "version": "1.0.0",
  "description": "A filter🔎 for flagging these 'BINOD' spams online 😉",
  "icons": {
    "16": "icons/16x16.png",
    "32": "icons/32x32.png",
    "48": "icons/48x48.png",
    "72": "icons/72x72.png",
    "96": "icons/96x96.png",
    "144": "icons/144x144.png",
    "192": "icons/192x192.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "filter.js"
      ]
    }
  ]
}