Examine source code of cringe picture

{
  "manifest_version": 2,
  "name": "cringe picture",
  "version": "1.2",
  "description": "This addon replaces images with pictures",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "64": "images/icon-64.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "cageify.js"
      ]
    }
  ],
  "homepage_url": "https://gitlab.com/prevost.anatole/extention",
  "web_accessible_resources": [
    "images/nic0.jpg",
    "images/nic1.jpg",
    "images/nic2.jpg",
    "images/nic3.jpg",
    "images/nic4.jpg",
    "images/nic5.jpg",
    "images/nic6.jpg",
    "images/nic7.jpg",
    "images/nic8.jpg",
    "images/nic9.jpg",
    "images/nic10.jpg",
    "images/nic11.jpg",
    "images/nic12.jpg",
    "images/nic13.jpg",
    "images/nic14.jpg",
    "images/nic15.jpg",
    "images/nic16.jpg",
    "images/nic17.jpg",
    "images/nic18.jpg",
    "images/nic19.jpg",
    "images/nic20.jpg",
    "images/nic21.jpg",
    "images/nic22.jpg",
    "images/nic23.jpg",
    "images/nic24.jpg",
    "images/nic25.jpg",
    "images/nic26.jpg",
    "images/nic27.jpg",
    "images/nic28.jpg",
    "images/nic29.jpg",
    "images/nic30.jpg",
    "images/nic31.jpg",
    "images/nic32.jpg",
    "images/nic33.jpg",
    "images/nic34.jpg",
    "images/nic35.jpg",
    "images/nic36.jpg",
    "images/nic37.jpg"
  ]
}