Examine source code of Videoskipper

{
  "manifest_version": 2,
  "name": "Videoskipper",
  "version": "0.1",
  "description": "Skips all videos",
  "author": "gcx11",
  "background": {
    "scripts": [
      "videoskipper.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/skip-16.png",
      "32": "icons/skip-32.png"
    },
    "default_title": "Skip all videos"
  },
  "permissions": [
    "<all_urls>",
    "activeTab"
  ]
}