Examine source code of Anime video control

{
  "manifest_version": 3,
  "version": "1.0.8",
  "name": "Anime video control",
  "short_name": "AVC",
  "description": "Anime video control for animedia",
  "developer": {
    "name": "J3000"
  },
  "content_scripts": [
    {
      "matches": [
        "https://mangavost.org/*",
        "https://amd.online/*.html",
        "https://aser.pro/*",
        "https://rutube.ru/*"
      ],
      "js": [
        "contentScript/cscript.js"
      ],
      "match_about_blank": false,
      "all_frames": true,
      "run_at": "document_idle"
    }
  ],
  "incognito": "not_allowed",
  "icons": {
    "96": "/icon/aniface.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{538ec0d6-cea2-42a2-afa6-2ad0db7a9ed5}",
      "strict_min_version": "58.0"
    }
  }
}