markdown.js

$registerPerspective({
    "id": "Markdown Editor",
    "view": {
        "parts": [
            {
                "place": "MarkdownLiveViewer",
                "parameters": {}
            }
        ],
        "panels": [
            {
                "width": 600,
                "min_width": 300,
                "position": "west",
                "parts": [
                    {
                        "place": "MarkdownLiveEditor",
                        "parameters": {}
                    }
                ]
            }
        ]
    },
    on_close: function () {
    }
});