Examine source code of Counterless Youtube

{
  "name": "Counterless Youtube",
  "version": "0.0.2",
  "description": "Removes every counters such as numbers of likes, subscribers, views, comments, replies & dates",
  "icons": {
    "48": "./icon_48px.png",
    "96": "./icon_96px.png"
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "*://*.youtube.com/*"
      ],
      "css": [
        "./style.css"
      ]
    }
  ],
  "manifest_version": 2,
  "permissions": []
}