Examine source code of FACEX

{
  "manifest_version": 2,
  "name": "FACE-X",
  "version": "2.0.1",
  "description": "Faceit Stats on steamcommunity profile",
  "icons": {
    "48": "img/logo.png",
    "96": "img/logo.png"
  },
  "permissions": [
    "https://api.faceit.com/*",
    "https://open.faceit.com/*",
    "https://csstats.gg/*",
    "<all_urls>",
    "storage"
  ],
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.steamcommunity.com/id/*",
        "*://*.steamcommunity.com/profiles/*"
      ],
      "js": [
        "scripts/main.js"
      ],
      "css": [
        "style.css"
      ],
      "exclude_matches": [
        "*://*.steamcommunity.com/id/*/allcomments*",
        "*://*.steamcommunity.com/profiles/*/allcomments*"
      ]
    }
  ],
  "web_accessible_resources": [
    "img/premier/common.png",
    "img/premier/uncommon.png",
    "img/premier/rare.png",
    "img/premier/mythical.png",
    "img/premier/legendary.png",
    "img/premier/ancient.png",
    "img/premier/unusual.png",
    "img/levels/1.svg",
    "img/levels/2.svg",
    "img/levels/3.svg",
    "img/levels/4.svg",
    "img/levels/5.svg",
    "img/levels/6.svg",
    "img/levels/7.svg",
    "img/levels/8.svg",
    "img/levels/9.svg",
    "img/levels/10.svg",
    "img/levels/unranked.svg",
    "img/faceit-logo.png",
    "img/csstats-logo.svg"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{84e48056-524d-4921-ba17-7cfe75144a2a}"
    }
  }
}