Examine source code of Fandom SideBar Remover

{
  "name": "Fandom SideBar Remover",
  "description": "Remove Side bar from Fandom Wiki",
  "version": "1.1.0",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://*.fandom.com/wiki/*",
        "https://*.fandom.com/*"
      ],
      "css": [
        "index.css"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6afc5e5a-644b-497c-acea-2f433cec297d}"
    }
  }
}