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
/**
     * Creates a new field editor.
     */
    protected FieldEditor() {
    }
    /**
     * Creates a new field editor.
     * 
     * @param name the name of the preference this field editor works on
     * @param labelText the label text of the field editor
     * @param parent the parent of the field editor's control
     */
    protected FieldEditor(String name, String labelText, Composite parent) {
        init(name, labelText);
        createControl(parent);
    }
    /**
     * Adjusts the horizontal span of this field editor's basic controls.
     * <p>
     * Subclasses must implement this method to adjust the horizontal span 
     * of controls so they appear correct in the given number of columns.
     * </p>
     * <p>
     * The number of columns will always be equal to or greater than the 
     * value returned by this editor's <code>getNumberOfControls</code> method.
     *
     * @param numColumns the number of columns
     */
    protected abstract void adjustForNumColumns(int numColumns);
    /**