Examine source code of Meme Generator

{
  "manifest_version": 2,
  "name": "Meme Generator",
  "version": "1.0",
  "description": "Quickly create meme images from a popup.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3a631b5e-e688-4670-9c02-8d7a84e8751e}"
    }
  }
}