Examine source code of Tab Slideshow WE

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "0.7.1",
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "{ff4c3ef4-7337-4e7f-aa99-77ed911ef8b1}",
      "strict_min_version": "66.0"
    }
  },
  "icons": {
    "48": "icons/tab-slideshow-we-48.png",
    "96": "icons/tab-slideshow-we-96.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/tab-slideshow-we-2colors.svg",
    "default_title": "__MSG_browserActionTitle__"
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Shift+Alt+A"
      },
      "description": "__MSG_toggleSlideshow__"
    }
  },
  "permissions": [
    "storage"
  ]
}