Examine source code of Block Yandex Zen

{
  "manifest_version": 2,
  "name": "Block Yandex Zen",
  "version": "1.1",
  "author": "Automatize-IT",
  "description": "Block Yandex Zen from loading and-or showning on sites",
  "icons": {
    "16": "yandex_zen_stop_16x16.png",
    "48": "yandex_zen_stop_48x48.png"
  },
  "permissions": [
    "tabs",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
  ],
  "background": {
    "persistent": true,
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Hide Yandex Zen",
    "default_icon": "yandex_zen_stop_48x48.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "client.js"
      ],
      "run_at": "document_end"
    }
  ]
}