Examine source code of LinkOff - LinkedIn Filter and Customizer

{
  "manifest_version": 3,
  "name": "LinkOff - Filter and Customizer for LinkedIn™",
  "short_name": "LinkOff",
  "author": "Noah Jelich",
  "version": "1.15.0",
  "description": "LinkOff cleans and customizes LinkedIn. It filters out the junk, leaving behind the posts and page elements that you want to see.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{dc212c1b-5965-471e-ac34-56c908222386}",
      "strict_min_version": "58.0"
    },
    "gecko_android": {
      "id": "{dc212c1b-5965-471e-ac34-56c908222386}",
      "strict_min_version": "58.0"
    }
  },
  "icons": {
    "16": "src/icons/icon16.png",
    "48": "src/icons/icon48.png",
    "128": "src/icons/icon128.png"
  },
  "background": {
    "service_worker": "src/service_worker.js",
    "scripts": [
      "src/service_worker.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.linkedin.com/*",
        "https://linkedin.com/*"
      ],
      "js": [
        "src/content/content.js"
      ],
      "css": [
        "src/content/content.css"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "src/locales/*.json",
        "src/icons/*.svg",
        "src/*.js",
        "src/features/*.js"
      ],
      "matches": [
        "https://www.linkedin.com/*",
        "https://linkedin.com/*"
      ]
    }
  ],
  "action": {
    "default_popup": "src/popup/popup.html"
  },
  "host_permissions": [
    "https://www.linkedin.com/*",
    "https://linkedin.com/*"
  ],
  "permissions": [
    "storage"
  ]
}