Send web articles to Kindle by KTool

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "description": "Send web articles, Twitter threads, RSS and newsletters to Kindle",
  "version": "1.8.1",
  "manifest_version": 3,
  "minimum_chrome_version": "92",
  "name": "Send web articles to Kindle by KTool",
  "background": {
    "service_worker": "background.bundle.js"
  },
  "commands": {
    "send-to-kindle": {
      "suggested_key": {
        "default": "Ctrl+Shift+K",
        "mac": "Command+Shift+K"
      },
      "description": "Send current article to Kindle."
    },
    "send-to-kindle-alt": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "Command+Shift+S"
      },
      "description": "Send current article to Kindle."
    },
    "preview": {
      "suggested_key": {
        "default": "Ctrl+Shift+P",
        "mac": "Command+Shift+P"
      },
      "description": "Preview and customize web page."
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": "icon-48.png"
  },
  "host_permissions": [
    "*://ktool.io/*"
  ],
  "permissions": [
    "storage",
    "contextMenus",
    "cookies",
    "scripting",
    "activeTab"
  ],
  "icons": {
    "16": "icon-16.png",
    "128": "icon-128.png",
    "512": "icon-512.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "import-from-amazon.js",
        "icon-128.png",
        "icon-48.png",
        "icon-16.png",
        "*.eot",
        "*.svg",
        "*.ttf",
        "*.woff",
        "*.woff2",
        "*.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}