Bug 42143 Dialogs for source actions do not use dialog font [dialogs]
select a cu in package explorer context menu "Source": "Override/Implement methods..." "Generate Getters and Setters..." "Generate Delegate methods..." "Add constructor from superclass..." "Generate constructor using fields..."
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/dialogs/SourceActionDialog.java
public void widgetDefaultSelected(SelectionEvent event) {
				widgetSelected(event);
			}
		});	
		return visibilityComposite;			
	}	
			
	protected Composite createEntryPtCombo(Composite composite) {
		Composite selectionComposite = new Composite(composite, SWT.NONE);
		GridLayout layout = new GridLayout();
		layout.marginHeight= 0;
		layout.marginWidth= 0;
		selectionComposite.setLayout(layout);
					
		addOrderEntryChoices(selectionComposite);	
										
		return selectionComposite;
	}
	
	private Composite addOrderEntryChoices(Composite buttonComposite) {
		Label enterLabel= new Label(buttonComposite, SWT.NONE);
		enterLabel.setText(ActionMessages.getString("SourceActionDialog.enterAt_label")); 
			
		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		enterLabel.setLayoutData(gd);
		final Combo enterCombo= new Combo(buttonComposite, SWT.READ_ONLY);
		fillWithPossibleInsertPositions(enterCombo);
			
		gd= new GridData(GridData.FILL_BOTH);
		enterCombo.setLayoutData(gd);