return;
buttonList.clear();
int w = (width - xSize) / 2;
int h = (height - ySize) / 2;
buttonList.add(new GuiButtonSmall(0, w + 10, h + 20, 20, "<"));
buttonList.add(new GuiButtonSmall(1, w + 146, h + 20, 20, ">"));
buttonList.add(filterLeft = new GuiButtonSmall(2, w + 10, h + 40, 20, "<"));
buttonList.add(filterRight = new GuiButtonSmall(3, w + 146, h + 40, 20, ">"));
}