Examine source code of Intention App

{
  "manifest_version": 2,
  "name": "Intention App",
  "version": "0.2resigned1",
  "description": "Find the intention before jumping on the abyss of social media",
  "homepage_url": "https://github.com/elxavicio/intentionapp",
  "icons": {
    "48": "icons/icons8-target-48.png",
    "96": "icons/icons8-target-96.png"
  },
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.twitter.com/*",
        "*://*.facebook.com/*",
        "*://*.instagram.com/*"
      ],
      "js": [
        "intention.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a7d60478-05e8-4f09-b4f8-3dcd30664fb0}"
    }
  }
}