Examine source code of VeloFill

{
  "manifest_version": 3,
  "name": "VeloFill",
  "description": "Fill at the speed of thought - High-velocity form completion powered by AI",
  "icons": {
    "32": "icon.svg",
    "64": "icon.svg"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "action": {
    "default_icon": "icon.svg",
    "default_title": "VeloFill",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*",
        "file:///*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@velofill.com"
    }
  },
  "version": "1.3.3"
}