drools-eclipse/org.drools.eclipse/src/main/java/org/drools/eclipse/editors/rete/figure/VertexFigure.java
public void paint(Graphics g) {
        g.setAntialias( SWT.ON );
        Rectangle r = getBounds().getCopy();
        g.translate( r.getLocation() );
        g.setBackgroundColor( backgroundColor );
        g.setForegroundColor( borderColor );
        g.fillArc( 0,
                   0,
                   15,
                   15,
                   0,
                   360 );
        g.drawArc( 0,
                   0,
                   14,
                   14,
                   0,
                   360 );
        super.paint( g );
    }
public void paint(Graphics g) {
        g.setAntialias( SWT.ON );
        Rectangle r = getBounds().getCopy();
        g.translate( r.getLocation() );
        g.setBackgroundColor( backgroundColor );
        g.setForegroundColor( borderColor );
        g.fillArc( 0,
                   0,
                   15,
                   15,
                   0,
                   360 );
        g.drawArc( 0,
                   0,
                   14,
                   14,
                   0,
                   360 );
        super.paint( g );
    }
public void paint ( Graphics g ) { g . setAntialias ( SWT . ON ) ; Rectangle r = getBounds ( ) . getCopy ( ) ; g . translate ( r . getLocation ( ) ) ; g . setBackgroundColor ( backgroundColor ) ; g . setForegroundColor ( borderColor ) ; g . fillArc ( 0 , 0 , 15 , 15 , 0 , 360 ) ; g . drawArc ( 0 , 0 , 14 , 14 , 0 , 360 ) ; super . paint ( g ) ; }
Painting antialiased vertex
Painting antialiased vertex