Examine source code of Masenahekan

{
  "manifest_version": 2,
  "name": "Masenahekan",
  "version": "0.4resigned1",
  "author": "Lucas Schneider",
  "description": "Minor input corrections for the Menominee Nation's online language database",
  "homepage_url": "http://lrschneider.com/masenahekan",
  "applications": {
    "gecko": {
      "id": "e47a1f1d-0a25-4e83-91e8-45d9bea75a23@jetpack",
      "strict_min_version": "48.0"
    }
  },
  "icons": {
    "16": "img/menomineeLogoBirdx16.png",
    "32": "img/menomineeLogoBirdx32.png",
    "48": "img/menomineeLogoBirdx48.png",
    "64": "img/menomineeLogoBirdx64.png",
    "128": "img/menomineeLogoBirdx128.png"
  },
  "browser_action": {
    "default_area": "navbar",
    "default_icon": {
      "16": "img/menomineeLogoBirdx16.png",
      "32": "img/menomineeLogoBirdx32.png",
      "48": "img/menomineeLogoBirdx48.png",
      "64": "img/menomineeLogoBirdx64.png",
      "128": "img/menomineeLogoBirdx128.png"
    },
    "default_title": "Masenahekan",
    "browser_style": true
  },
  "background": {
    "scripts": [
      "backgroundScripts/main.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.masenahekan.com/*",
        "*://menominee.wisc.edu/*"
      ],
      "js": [
        "contentScripts/cleanInput.js"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "tabs",
    "webRequest",
    "webNavigation",
    "*://*.masenahekan.com/*",
    "*://menominee.wisc.edu/*"
  ]
}