Examine source code of Ultimate Screenshotter

{
  "manifest_version": 2,
  "name": "Ultimate Screenshotter",
  "version": "1.0.23",
  "description": "Capture webpages, selected areas, and local OCR tables for Excel or Sheets, including visible Google Data Studio / Looker Studio tables.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ultimate-screenshotter@tripperdeelabs.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    },
    "default_title": "Ultimate Screenshotter"
  },
  "background": {
    "scripts": [
      "lib/browser-polyfill-lite.js",
      "lib/filenames.js",
      "lib/pdf.js",
      "lib/capture.js",
      "lib/tesseract/tesseract.min.js",
      "lib/table-extract.js",
      "background.js"
    ],
    "persistent": true
  },
  "content_security_policy": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'",
  "permissions": [
    "activeTab",
    "tabs",
    "downloads",
    "storage",
    "clipboardWrite",
    "contextMenus",
    "notifications",
    "<all_urls>"
  ],
  "commands": {
    "copy-selected-area": {
      "suggested_key": {
        "default": "Ctrl+Shift+U"
      },
      "description": "Copy selected area to clipboard"
    },
    "capture-full-page": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y"
      },
      "description": "Capture full page using current screen"
    },
    "capture-visible-viewport": {
      "description": "Capture the visible viewport using current screen"
    }
  }
}