Examine source code of Google Images Restored

{
  "author": "fanfare",
  "name": "Google Images Restored",
  "version": "0.4.5",
  "manifest_version": 2,
  "description": "Restores Google Images to how it appeared before August 6, 2019",
  "homepage_url": "https://github.com/fanfare/googleimagesrestored",
  "icons": {
    "16": "icon/16-min.png",
    "19": "icon/19-min.png",
    "38": "icon/38-min.png",
    "48": "icon/48-min.png",
    "128": "icon/128-min.png"
  },
  "default_locale": "en",
  "content_scripts": [
    {
      "include_globs": [
        "*tbm=isch*"
      ],
      "css": [
        "css/style.css"
      ],
      "js": [
        "js/main.js"
      ],
      "run_at": "document_start",
      "matches": [
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        "*://*.google.ac/*",
        "*://*.google.ad/*",
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        "*://*.google.com.kh/*",
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        "*://*.google.co.zw/*"
      ]
    }
  ],
  "web_accessible_resources": [
    "js/ipc.js"
  ]
}