Examine source code of ProtonDB Community Extension

{
  "manifest_version": 3,
  "name": "ProtonDB Community Extension",
  "description": "Elevate Your Linux Gaming Experience with ProtonDB Community Extension!",
  "version": "1.4.22",
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "index.html",
    "default_icon": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@protondb-community-extension.com"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://store.steampowered.com/*",
        "https://steamcommunity.com/id/*/games/*",
        "https://steamcommunity.com/profiles/*/games/*"
      ],
      "exclude_matches": [
        "*://store.steampowered.com/dynamicstore/*",
        "*://store.steampowered.com/login/*",
        "*://store.steampowered.com/join/*",
        "*://steamcommunity.com/login/*",
        "*://checkout.steampowered.com/*",
        "*://store.steampowered.com/charts/*"
      ],
      "js": [
        "./utils/globals.js",
        "./utils/observers.js",
        "./utils/helpers.js",
        "./utils/items.js",
        "./utils/dom_handlers.js",
        "./scripts/store.script.js"
      ],
      "css": [
        "./styles/store.style.css"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://store.steampowered.com/app/*"
      ],
      "js": [
        "./scripts/app_page.script.js"
      ],
      "css": [
        "./styles/app_page.style.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/*"
      ],
      "matches": [
        "https://store.steampowered.com/*",
        "https://steamcommunity.com/*"
      ]
    }
  ],
  "host_permissions": [
    "https://store.steampowered.com/*",
    "https://www.protondb.com/*"
  ]
}