Glass-Effect properties missing in REST Api

When I use the /v1/file endpoint to retrieve the file data vie REST request, in the effects property of a node i cant see the relevant properties for the glass effect:

{
    type": "GLASS",
    "visible": true
}

Is there any option to get the properties that are also available in the PluginAPI or a timeline when this data is present in the REST Api?

Thanks, Felix