Examine source code of Anti-Sticky

{
  "manifest_version": 2,
  "name": "Anti-Sticky",
  "description": "Hides sticky GUI elements. Frees up browser real estate on your mobile device for the page's primary content. Hides static headers, footers, and overlays when you scroll down.",
  "homepage_url": "https://github.com/justinormont/AntiStickyExtension",
  "version": "0.2.1",
  "icons": {
    "48": "icons/icon.png",
    "96": "icons/icon@2x.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./main.js"
      ]
    }
  ]
}