Examine source code of PEFL CrabVIP

{
  "name": "PEFL CrabVIP",
  "version": "2.1.0",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "{4a500822-9c05-48e4-acac-15c41e8bd77c}"
    }
  },
  "action": {
    "default_icon": {
      "36": "img/icon36.png",
      "128": "img/icon128.png"
    },
    "default_popup": "popup.html",
    "default_title": "PEFL CrabVIP"
  },
  "icons": {
    "32": "img/icon32.png",
    "36": "img/icon36.png",
    "128": "img/icon128.png"
  },
  "content_scripts": [
    {
      "css": [
        "css/css.css"
      ],
      "matches": [
        "https://pefl.ru/*",
        "https://pefl.org/*",
        "https://www.pefl.ru/*",
        "https://www.pefl.org/*"
      ],
      "exclude_matches": [
        "*://*/auth.php*",
        "*://*/profile.php*",
        "*://*/loadplayer.php*"
      ],
      "js": [
        "crab.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "img/*",
        "js/crab_funcs_db.js",
        "js/crab_funcs_std.js",
        "js/crab_funcs_pls.js",
        "js/crab_common.user.js",
        "js/crab_settings.user.js",
        "js/crab_sostav.user.js",
        "js/crab_player.user.js",
        "js/crab_contracts.user.js",
        "js/crab_team.user.js",
        "js/crab_div.user.js",
        "js/crab_schedule.user.js",
        "js/crab_school.user.js",
        "js/crab_finance.user.js",
        "js/crab_hist.user.js",
        "js/crab_dov.user.js",
        "js/crab_train.user.js",
        "js/crab_match.user.js",
        "js/crab_tournaments.user.js",
        "js/crab_adaptation.user.js",
        "js/crab_calendar.user.js",
        "js/crab_index.user.js",
        "js/crab_forum.user.js",
        "js/crab_ref.user.js",
        "js/crab_summary.user.js",
        "js/crab_new_sostav.user.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "extension_ids": []
    }
  ],
  "permissions": [],
  "host_permissions": [
    "http://pefl.ru/*",
    "http://pefl.org/*",
    "http://www.pefl.ru/*",
    "http://www.pefl.org/*",
    "https://pefl.ru/*",
    "https://pefl.org/*",
    "https://www.pefl.ru/*",
    "https://www.pefl.org/*"
  ]
}