Examine source code of Positive Substitutions

{
  "manifest_version": 3,
  "name": "Positive Substitutions",
  "version": "8",
  "description": "Makes the internet a little more entertaining by substituting a bunch of words with other words.",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "substitutions.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "positivesubstitutions@vtsu.org",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {}
  }
}