Examine source code of Reload Skip Cache Button

{
  "applications": {
    "gecko": {
      "id": "reload-skip-cache-single@codefisher.org",
      "strict_min_version": "42.0"
    }
  },
  "background": {
    "scripts": [
      "reload-skip-cache-background.js"
    ]
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icons/16-arrow-rotate-clockwise-270.png",
      "24": "icons/24-arrow-rotate-clockwise-270.png",
      "32": "icons/32-arrow-rotate-clockwise-270.png",
      "48": "icons/48-arrow-rotate-clockwise-270.png"
    },
    "default_title": "__MSG_reloadSkipCacheLabel__"
  },
  "default_locale": "en_US",
  "description": "Reload page without using content stored in the browser cache to make sure you get any updates.",
  "homepage_url": "https://codefisher.org/toolbar_button/",
  "icons": {
    "16": "icons/16-arrow-rotate-clockwise-270.png",
    "24": "icons/24-arrow-rotate-clockwise-270.png",
    "32": "icons/32-arrow-rotate-clockwise-270.png",
    "48": "icons/48-arrow-rotate-clockwise-270.png"
  },
  "manifest_version": 2,
  "name": "Reload Skip Cache Button",
  "version": "1.3resigned1"
}