Examine source code of JLC Batch UpLoad

{
  "manifest_version": 2,
  "name": "JLC Batch UpLoad",
  "version": "0.1.30",
  "browser_specific_settings": {
    "gecko": {
      "id": "jlc-batch-upload@example.com",
      "strict_min_version": "91.0"
    }
  },
  "description": "在 JLC 上传页面提供一个批量上传PCB按钮，选择多个文件后自动压缩并逐个上传，辅助批量下单。朗朗 (wyl@lg.zj.cn)",
  "author": "朗朗 <wyl@lg.zj.cn>",
  "background": {
    "scripts": [
      "src/background-firefox.js"
    ],
    "persistent": false
  },
  "permissions": [
    "storage",
    "https://www.jlc.com/newOrder/*",
    "https://jlc.com/newOrder/*"
  ],
  "browser_action": {
    "default_title": "JLC Batch UpLoad",
    "default_popup": "src/popup.html",
    "default_icon": {
      "32": "src/assets/icons/32.png",
      "48": "src/assets/icons/48.png"
    }
  },
  "icons": {
    "32": "src/assets/icons/32.png",
    "48": "src/assets/icons/48.png",
    "64": "src/assets/icons/64.png",
    "128": "src/assets/icons/128.png",
    "256": "src/assets/icons/256.png"
  },
  "options_ui": {
    "page": "src/options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.jlc.com/newOrder/*",
        "https://jlc.com/newOrder/*"
      ],
      "js": [
        "src/content/settings.js",
        "src/content/batch-upload-firefox.js"
      ],
      "run_at": "document_idle",
      "all_frames": true
    }
  ]
}