Project 5: customizing Projects 291 s|TextInput{ skinClass: ClassReference("skins.InputTextSkin"); } s|TextInput{ focusColor: #333333; } </fx:Style> customizing the combo Box Tocustomizethecomboboxweexploitskinparts.Whenyou createanewskinforacomboboxyouwillnoticethatitismade of parts. At the bottom there is an instance of TextInput . That is the only thing we need to update, as follows. <s:SparkSkin> ... <s:TextInput I d="textInput"