Examine source code of Obsidian Easy Clipper

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.3.8",
  "browser_specific_settings": {
    "gecko": {
      "id": "nykko.lin@gmail.com",
      "strict_min_version": "58.0"
    }
  },
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "alarms",
    "clipboardWrite",
    "<all_urls>",
    "contextMenus"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "utils/browser-polyfill.js",
        "turndown.js",
        "Readability.js",
        "scripts/transcription.js",
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_icon": {
      "16": "images/icon16.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    },
    "default_title": "__MSG_defaultTitle__",
    "default_popup": "popup.html",
    "theme_icons": [
      {
        "light": "images/icon16.png",
        "dark": "images/icon16_dark.png",
        "size": 16
      },
      {
        "light": "images/icon48.png",
        "dark": "images/icon48_dark.png",
        "size": 48
      },
      {
        "light": "images/icon128.png",
        "dark": "images/icon128_dark.png",
        "size": 128
      }
    ]
  },
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "images/*.svg",
    "images/*.png"
  ],
  "commands": {
    "save-to-obsidian": {
      "description": "__MSG_saveToObsidian__"
    }
  }
}