gets the current default look and feel.
lnf=getlookandfeel()
:lnf a string with current look and feel. : :bok a boolean. :
Gets the current default look and feel.
currentlnf = getlookandfeel();
// Look and feel CDE/Motif
`setlookandfeel`_("com.sun.java.swing.plaf.motif.MotifLookAndFeel")
`sleep`_(3000);
// Look and feel métal
`setlookandfeel`_("javax.swing.plaf.metal.MetalLookAndFeel")
`sleep`_(3000);
`setlookandfeel`_(currentlnf)