Examine source code of Floatplane Enhancer

{
  "manifest_version": 2,
  "name": "Floatplane Enhancer",
  "version": "2.5",
  "description": "Enhances the Floatplane experience",
  "permissions": [
    "activeTab",
    "storage",
    "*://floatplane.com/*",
    "*://www.floatplane.com/*",
    "*://beta.floatplane.com/*",
    "*://status.floatplane.com/*",
    "*://*.live-video.net/*",
    "*://api.pollsplane.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://floatplane.com/*",
        "*://www.floatplane.com/*",
        "*://beta.floatplane.com/*",
        "*://status.floatplane.com/*",
        "*://*.live-video.net/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "/gui/popup.html"
  },
  "web_accessible_resources": [
    "/darkmode-css/dark-theme.css",
    "/darkmode-css/status-dark-theme.css",
    "/features/timestamp.js",
    "/features/autocaption.js",
    "/features/is_live_watcher.js",
    "/features/live_polls.js",
    "/features/darkmode_fix_links.js"
  ],
  "icons": {
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "applications": {
    "gecko": {
      "id": "floatplaneenhancer@furrydev.xyz"
    }
  }
}