public void storePreferences() {
    ISettingsManager props = properties;

    props.setOptionsRenderingAntialiasing(optionsRenderingAntialiasingComboBox.getSelectedIndex());
    props.setOptionsRenderingTextAntialiasing(
        optionsRenderingTextAntialiasingComboBox.getSelectedIndex());
    props.setOptionsRenderingMethod(optionsRenderingMethodComboBox.getSelectedIndex());
    props.setOptionsRenderingNoBuffers(optionsRenderingNoBuffersComboBox.getSelectedIndex() + 1);
    props.setOptionsRenderingBufferImages(optionsRenderingBufferImagesCheckBox.isSelected());
    props.setOptionsRenderingForceBulletColor(
        optionsRenderingForceBulletColorCheckBox.isSelected());
    properties.saveProperties();
  }