JSON Schema Property 'icons'

"icons": {
    "type": "object",
    "description": "One or more icons that represent the extension, app, or theme. Recommended format: PNG; also BMP, GIF, ICO, JPEG.",
    "minProperties": 1,
    "properties": {
        "16": {
            "$ref": "#/definitions/icon",
            "description": "Used as the favicon for an extension's pages and infobar."
        },
        "48": {
            "$ref": "#/definitions/icon",
            "description": "Used on the extension management page (chrome://extensions)."
        },
        "128": {
            "$ref": "#/definitions/icon",
            "description": "Used during installation and in the Chrome Web Store."
        },
        "256": {
            "$ref": "#/definitions/icon",
            "description": "Used during installation and in the Chrome Web Store."
        }
    }
}

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