Examine source code of Abortion is Infanticide

{
  "description": "Replaces the word \"Abortion\" with the word \"Infanticide\" on all your websites",
  "manifest_version": 2,
  "name": "Abortion is Infanticide",
  "version": "1.3.0",
  "author": "Joseph Dykstra",
  "homepage_url": "https://github.com/ArtskydJ/abortion-is-infanticide",
  "icons": {
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "exclude_matches": [
        "*://github.com/*"
      ],
      "js": [
        "abortion-is-infanticide.js"
      ],
      "run_at": "document_end"
    }
  ]
}