menuBar的话
通过设置iconField就可以咯
源码是这样的
if (data[iconField] is Class){
return data[iconField];
}
if (data[iconField] is String){
iconClass = Class(systemManager.getDefinitionByName(data[iconField]));
if (iconClass){
return iconClass;
}
return document[data[iconField]];
}