Examine source code of Dropp

{
  "manifest_version": 2,
  "name": "Dropp Extension",
  "description": "The dropp web extension companion to the dropp mobile wallet",
  "version": "2.3.24",
  "background": {
    "page": "background.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://dropp.app.link/*",
        "https://dropp.test-app.link/*",
        "https://pay.dropp.cc/*"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "inject-script.js"
  ],
  "browser_action": {
    "default_title": "Dropp Extension"
  },
  "icons": {
    "16": "dropp16.png",
    "48": "dropp48.png",
    "128": "dropp128.png"
  },
  "permissions": [
    "storage",
    "webRequest",
    "https://dropp.app.link/*",
    "https://dropp.test-app.link/*",
    "https://pay.dropp.cc/*",
    "<all_urls>"
  ],
  "content_security_policy": "script-src 'self' https://js.stripe.com/v3/ 'sha256-0c1lTu+Vz2BPFx/Ruv56KLK7+Eeq6Ncws+yh3Nly8H8=' https://www.ipqualityscore.com/api/dropp.cc/3opnKlCCCA0JU49oLKKs8fTIMMZKF2gX8yvNNHBOUSWCqrGsphJwoivPALzraUZoYgkUaFRUc6KK9LDQ1vpYH2SOyOAgQV4zKH9Cp8NvCKJ4sJ7NA3W3DWxp2PGmsvu0wNqHiSDIeHAwGMU8yMFZWnCiDQW4BvDsDo6t88zeuHHUdt7BpbHSNWlsUxbcrgpMEDlKodaAwLp9tTkWjwUjzzlQP6DOmsUJacaflc4NzPaOZsYFi3enEifhgnJvpQ2A/learn.js https://cdn.plaid.com/link/v2/stable/link-initialize.js  'unsafe-eval'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{271a1b0d-dce0-43ee-8162-6761230a9415}"
    }
  }
}