Examine source code of Reddit Enhancement

{
  "web_accessible_resources": [
    "prompt.html",
    "prompt.entry.js",
    "options.css",
    "options.html"
  ],
  "browser_specific_settings": {
    "gecko_android": {
      "strict_min_version": "120.0"
    },
    "gecko": {
      "strict_min_version": "115.0",
      "id": "{97664243-9da4-487a-b318-664b9c9dd2a2}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "description": "A suite of modules that enhance your Reddit browsing experience",
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "background": {
    "scripts": [
      "background.entry.js"
    ]
  },
  "optional_permissions": [
    "downloads",
    "geolocation",
    "https://publish.twitter.com/oembed",
    "https://backend.deviantart.com/oembed",
    "https://api.gyazo.com/api/oembed",
    "https://api.tumblr.com/v2/blog/*/posts",
    "https://xkcd.com/*/info.0.json",
    "https://api.steampowered.com/ISteamRemoteStorage/GetPublishedFileDetails/*",
    "https://www.googleapis.com/drive/v3/*",
    "https://*.redd.it/*",
    "https://www.flickr.com/services/oembed",
    "https://embed.bsky.app/oembed"
  ],
  "page_action": {
    "default_icon": {
      "19": "css-on-small.png",
      "38": "css-on.png"
    }
  },
  "version": "6.1.1",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://*.reddit.com/*"
      ],
      "exclude_matches": [
        "https://mod.reddit.com/*",
        "https://ads.reddit.com/*",
        "https://i.reddit.com/*",
        "https://m.reddit.com/*",
        "https://static.reddit.com/*",
        "https://thumbs.reddit.com/*",
        "https://blog.reddit.com/*",
        "https://code.reddit.com/*",
        "https://about.reddit.com/*",
        "https://sh.reddit.com/*",
        "https://*.reddit.com/talk/*",
        "https://*.reddit.com/chat/*",
        "https://*.reddit.com/*.compact",
        "https://*.reddit.com/*.compact?*",
        "https://*.reddit.com/*.mobile",
        "https://*.reddit.com/*.mobile?*",
        "https://*.reddit.com/*.json",
        "https://*.reddit.com/*.json?*",
        "https://*.reddit.com/*.json-html",
        "https://*.reddit.com/*.json-html?*"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "js": [
        "foreground.entry.js"
      ],
      "css": [
        "res.css"
      ]
    }
  ],
  "content_security_policy": "default-src 'self'; img-src 'self' data:; connect-src https:; font-src 'self' data:; frame-ancestors https://*.reddit.com",
  "permissions": [
    "https://*.reddit.com/*",
    "cookies",
    "identity",
    "tabs",
    "history",
    "storage",
    "scripting",
    "unlimitedStorage",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "name": "Reddit Enhancement Suite"
}