Bug 73027 [Dialogs] Buttons are too high
I20040831 Buttons are no longer oval but have a rounded rectangle shape (see first screenshot). The second screenshot shows how buttons using the small system font should look like.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferencePage.java
applyButton.addSelectionListener(new SelectionAdapter() {
				public void widgetSelected(SelectionEvent e) {
					performApply();
				}
			});
            applyButton.setEnabled(isValid());
            applyDialogFont(buttonBar);
        } else {
            /* Check if there are any other buttons on the button bar.
             * If not, throw away the button bar composite.  Otherwise
             * there is an unusually large button bar.
             */
            if (buttonBar.getChildren().length < 1)
                buttonBar.dispose();
        }
    }
    /**
     * Apply the dialog font to the composite and it's children
     * if it is set. Subclasses may override if they wish to
     * set the font themselves.
     * @param composite
     */
    protected void applyDialogFont(Composite composite) {
        Dialog.applyDialogFont(composite);
    }
    /**
     * Creates and returns an SWT label under the given composite.
     *
     * @param parent the parent composite
     * @return the new label