custom properies for material elements

[fincha]

Describe the bug
which template:

• MaterialDesignFrameworkModule — Material Design
• Bootstrap3FrameworkModule — Bootstrap 3
• Bootstrap4FrameworkModule — Bootstrap 4
• NoFrameworkModule — plain HTML
• Other (please specify below)

I am wondering how to set primary color on elements?

"layout": [
        {
            "type": "div",
            "display": "flex",
            "flex-direction": "row",
            "items": [
                {
                    "key": "roles.role",
                    "type": "radios",
                    "color": "primary",
                    "titleMap": {
                      "operator": "System operator for mandate",
                      "admin": "System administrator"
                    }
                },
                {"key": "roles.mandate"},
            ]
        },

the "color": "primary", does not work, also there is no documentation on custom properies at all... is there a possibility?

[github-actions]

Stale issue