Examine source code of Freedom Comes from Within

{
  "manifest_version": 2,
  "name": "Freedom Comes from Within",
  "version": "1.0",
  "description": "A collection of quotes celebrating wisdom as the light that banishes ignorance.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/freedom-logo.png"
    }
  },
  "icons": {
    "128": "images/freedom-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1375ba21-7913-45aa-bdca-400926e2e8f4}"
    }
  }
}