Label { 
  color:red;
} 

Text {
  background-color:green;
}

Display display = new Display();
// Create SWT CSS Engine
CSSEngine engine = new CSSSWTEngineImpl(display);
// Parse style sheet
engine.parseStyleSheet(new StringReader(
		"Label {color:red;} Text {background-color:green;}"));

/*--- Start  UI SWT ---*/
Shell shell = new Shell(display, SWT.SHELL_TRIM);
FillLayout layout = new FillLayout();
shell.setLayout(layout);

Composite panel1 = new Composite(shell, SWT.NONE);
panel1.setLayout(new FillLayout());

// Label
Label label1 = new Label(panel1, SWT.NONE);
label1.setText("Label 0");

// Text
Text text1 = new Text(panel1, SWT.NONE);
text1.setText("bla bla bla...");

/*---  End UI SWT ---*/

// Apply Styles
engine.applyStyles(shell, true);

shell.pack();
shell.open();

while (!shell.isDisposed()) {
	if (!display.readAndDispatch())
		display.sleep();
}

display.dispose();

JLabel { 
  color:red;
} 

JTextField {
  background-color:green;
}

// Create Swing CSS Engine
CSSEngine engine = new CSSSwingEngineImpl();
// Parse style sheet
engine.parseStyleSheet(new StringReader(
	"JLabel {color:red;} JTextField {background-color:green;}"));

/*---   Start UI Swing ---*/
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JPanel panel = new JPanel();
frame.getContentPane().add(panel);

// Label
JLabel label1 = new JLabel();
label1.setText("Label 0");
panel.add(label1);

// Text
JTextField text1 = new JTextField();
text1.setText("bla bla bla...");
panel.add(text1);

/*---   End UI Swing  ---*/

// Apply Styles
engine.applyStyles(frame, true);

frame.pack();
frame.setVisible(true);