Examine source code of GrammarNaziMKD

{
  "manifest_version": 2,
  "name": "GrammarNaziMKD",
  "version": "1.1resigned1",
  "description": "Modifies keyboard input by substituting certain cyrilic letter combinations with their counterparts that have an apostrophy(grave) to preserve a macedonian grammar rule",
  "permissions": [
    "activeTab"
  ],
  "icons": {
    "48": "icons/icon-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "substitute.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cd16381f-a425-4979-a757-282f9048a74e}"
    }
  }
}