Examine source code of Clean Twitter

{
  "manifest_version": 3,
  "name": "Clean Twitter",
  "description": "Clean up some annoying elements on Twitter and make your Twitter experience cleaner",
  "version": "0.19.2",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "storage"
  ],
  "author": "rxliuli",
  "homepage_url": "https://store.rxliuli.com/extensions/clean-twitter/",
  "browser_specific_settings": {
    "gecko": {
      "id": "clean-twttier@rxliuli.com"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Clean Twitter",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://x.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/bridge.js"
      ],
      "world": "ISOLATED"
    },
    {
      "matches": [
        "https://x.com/**"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    },
    {
      "matches": [
        "*://x.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/filter.js"
      ],
      "world": "MAIN"
    }
  ]
}