internal override void OnHeaderIconGUI(Rect iconRect)
{
if (this.m_Icon == null)
{
this.m_TargetObject = new SerializedObject(this.assetEditor.targets);
this.m_Icon = this.m_TargetObject.FindProperty("m_Icon");
}
EditorGUI.ObjectIconDropDown(iconRect, this.assetEditor.targets, true, null, this.m_Icon);
}