CodeCanvas

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "CodeCanvas",
    "version": "1.0",
    "description": "A lightweight code editor for quick HTML, CSS, and JavaScript testing",
    "permissions": [
        "activeTab",
        "scripting",
        "sidePanel",
        "storage",
        "tabs"
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "preview.html",
                "styles.css",
                "sidepanel.js"
            ],
            "matches": [
                "<all_urls>"
            ]
        }
    ],
    "action": {
        "default_title": "CodeCanvas",
        "default_icon": {
            "16": "icon16.png",
            "48": "icon48.png",
            "128": "icon128.png"
        }
    },
    "icons": {
        "16": "icon16.png",
        "48": "icon48.png",
        "128": "icon128.png"
    },
    "side_panel": {
        "default_path": "sidepanel.html"
    },
    "background": {
        "service_worker": "background.js"
    },
    "content_security_policy": {
        "extension_pages": "script-src 'self'; object-src 'self'"
    },
    "commands": {
        "_execute_action": {
            "suggested_key": {
                "default": "Ctrl+Shift+E",
                "mac": "Command+Shift+E"
            },
            "description": "Open Code Editor"
        }
    }
}