Examine source code of Split-Screen Workspace

{
  "manifest_version": 3,
  "name": "Split-Screen Workspace",
  "version": "1.0.0",
  "description": "A powerful split-screen workspace to browse the web, analyze documents, and sketch notes securely offline.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "commands": {
    "open-left": {
      "suggested_key": {
        "default": "Alt+L"
      },
      "description": "Open active tab in LEFT pane"
    },
    "open-right": {
      "suggested_key": {
        "default": "Alt+R"
      },
      "description": "Open active tab in RIGHT pane"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "service_worker": "background.js"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "split-screen-workspace@mochistudio.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "contextMenus",
    "declarativeNetRequest",
    "declarativeNetRequestWithHostAccess"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "bypass_iframe_blocks",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  }
}