@SuppressWarnings({"UseOfObsoleteCollectionType"})
private AaSlider getEffortSlider() {
if (_effortSlider == null) {
_effortSlider = new AaSlider(JSlider.HORIZONTAL, 10, 30, 20);
_effortSlider.setBackground(GuiResources.HIGHLIGHT_COLOR_DARKER);
_effortSlider.setMajorTickSpacing(10);
_effortSlider.setPaintTicks(true);
_effortSlider.setSnapToTicks(true);
_effortSlider.setBorder(null);