Examine source code of Sheets Row Highlighter

{
  "name": "Sheets Row Highlighter",
  "short_name": "Row Highlighter",
  "version": "2.1.0",
  "manifest_version": 3,
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://github.com/matsu7089/sheets-row-highlighter",
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://docs.google.com/spreadsheets/d/*",
        "https://*.officeapps.live.com/x/*"
      ],
      "js": [
        "scripts/content/SheetsActiveCellLocator.js",
        "scripts/content/ExcelActiveCellLocator.js",
        "scripts/content/RowHighlighterApp.js",
        "scripts/content/main.js"
      ],
      "all_frames": true
    }
  ],
  "action": {
    "default_popup": "pages/popup.html"
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "commands": {
    "toggleRow": {
      "description": "__MSG_toggleRowDescription__"
    },
    "toggleColumn": {
      "description": "__MSG_toggleColumnDescription__"
    },
    "toggleBoth": {
      "description": "__MSG_toggleBothDescription__"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{669962c5-0a3b-4e48-a7e1-020aa9c012c8}"
    }
  }
}