             return "\"rgba(\(r), \(g), \(b), 1.0)\""
         case let .hexColor(hexColor):
             return "\"\(hexColor)\""
+        case .auto:
+            return "\"auto\""
         case .red:
             return "\"red\""
         case .blue:

        }
    }
}

    case rgb(Int, Int, Int)
    case hexColor(String)
    case array([SECColor])
    case image(String, ImageRepeat)
//    case linearGradient(Float, Float, Float, Float, )
    case auto, red, blue, green, yellow, transparent
    
    public var jsonString: String {
        switch self {
