Examine source code of Highlight2Prompt

{
  "manifest_version": 3,
  "name": "Highlight2Prompt",
  "version": "1.0",
  "description": "Highlight any text → choose a prompt (Explain, Expand, Fact Check, or custom) → send it to your favorite AI",
  "permissions": [
    "storage",
    "scripting"
  ],
  "action": {
    "default_icon": {
      "16": "images/16x16.png",
      "48": "images/48x48.png",
      "128": "images/128x128.png"
    }
  },
  "background": {
    "scripts": [
      "background.min.js"
    ]
  },
  "host_permissions": [
    "https://chatgpt.com/*",
    "https://chat.openai.com/*",
    "https://claude.ai/*",
    "https://gemini.google.com/*",
    "https://chat.deepseek.com/*",
    "https://chat.qwenlm.ai/*",
    "https://www.perplexity.ai/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.min.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "addPrompt.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "highlight2prompt@10xdev.blog",
      "strict_min_version": "109.0"
    }
  }
}