Examine source code of Florida Man

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "floridaman@elbowbaggins"
    }
  },
  "name": "Florida Man",
  "version": "1.5.2resigned1",
  "description": "Replaces both 'Marco Rubio' and 'Jeb Bush' with 'Florida Man', replaces 'Florida Man' with either 'Jeb Bush' or 'Marco Rubio' at random.",
  "icons": {
    "32": "res/icons/32.png",
    "48": "res/icons/48.png",
    "64": "res/icons/64.png",
    "96": "res/icons/96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/data.js",
        "src/utils.js",
        "src/extension.js"
      ],
      "run_at": "document_start"
    }
  ]
}