question: private void loadTheme ( ) { if ( UIManager . getLookAndFeel ( ) instanceof MetalLookAndFeel ) { } else { primary1 . setEnabled ( false ) ; primary2 . setEnabled ( false ) ; primary3 . setEnabled ( false ) ; secondary1 . setEnabled ( false ) ; secondary2 . setEnabled ( false ) ; secondary3 . setEnabled ( false ) ; } }
target:  Load Theme from current Setting (if MetalLookAndFeel)