question: protected void installDefaults ( ) { LookAndFeel . installColorsAndFont ( comboBox , "ComboBox.background" , "ComboBox.foreground" , "ComboBox.font" ) ; LookAndFeel . installBorder ( comboBox , "ComboBox.border" ) ; LookAndFeel . installProperty ( comboBox , "opaque" , Boolean . TRUE ) ; Long l = ( Long ) UIManager . get ( "ComboBox.timeFactor" ) ; timeFactor = l == null ? 1000L : l . longValue ( ) ; Boolean b = ( Boolean ) UIManager . get ( "ComboBox.squareButton" ) ; squareButton = b == null ? true : b ; padding = UIManager . getInsets ( "ComboBox.padding" ) ; }
target:  Installs the default colors, default font, default renderer, and default editor into the JComboBox.