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/FieldEditor.java
* the field editor.
     * </p>
     */
    protected abstract void doLoadDefault();
    /**
     * Stores the preference value from this field editor into
     * the preference store.
     * <p>
     * Subclasses must implement this method to save the entered value
     * into the preference store.
     * </p>
     */
    protected abstract void doStore();
    /**
     * Fills this field editor's basic controls into the given parent. 
     *
     * @param parent the composite used as a parent for the basic controls;
     *	the parent's layout must be a <code>GridLayout</code>
     * @param numColumns the number of columns
     */
    public void fillIntoGrid(Composite parent, int numColumns) {
        Assert.isTrue(numColumns >= getNumberOfControls());
        Assert.isTrue(parent.getLayout() instanceof GridLayout);
        doFillIntoGrid(parent, numColumns);
    }
    /**
     * Informs this field editor's listener, if it has one, about a change to
     * one of this field editor's boolean-valued properties. Does nothing
     * if the old and new values are the same.
     *