break;
case 0x20: { // control event
int size = readOneToTwo(is);
byte[] data = new byte[size];
read(is, data);
smafMessage = new BackDropColorDefinitionMessage(duration, data);
} break;
case 0x21: { // control event
int size = readOneToTwo(is);
byte[] data = new byte[size];
read(is, data);