jsoneditor/app/chrome/manifest.json

{
    "manifest_version": 2,
    "name": "JSON Editor",
    "version": "1.5.0",
    "description": "JSON Editor is a tool to view, edit, and format JSON. It shows your data in an editable treeview and in formatted plain text.",
    "app": {
        "launch": {
            "local_path": "index.html"
        }
    },
    "icons": {
        "16": "icon_16.png",
        "128": "icon_128.png"
    },
    "permissions": [
    ],
    "offline_enabled": true
}