Calculator

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "Calculator",
    "short_name": "Calculator",
    "description": "One different scientific calculator (desktop version)...",
    "version": "3.1.0.0",
    "app": {
        "background": {
            "scripts": [
                "background.js"
            ]
        }
    },
    "icons": {
        "16": "16.png",
        "128": "128.png"
    },
    "manifest_version": 2,
    "offline_enabled": true,
    "commands": {
        "_execute_browser_action": {
            "suggested_key": {
                "default": "Alt+C",
                "windows": "Alt+C",
                "mac": "Alt+C",
                "chromeos": "Alt+C",
                "linux": "Alt+C"
            }
        }
    },
    "permissions": [
        "clipboardRead",
        "clipboardWrite",
        "app",
        "storage"
    ]
}