toJson method
Implementation
Map<String, dynamic> toJson() => {
'id': id,
'text': text,
if (tooltip != null) 'tooltip': tooltip,
if (command != null) 'command': command,
if (priority != null) 'priority': priority,
'alignment': alignment.value,
if (color != null) 'color': color,
if (backgroundColor != null) 'backgroundColor': backgroundColor,
};