Go to your LayerSlider and open the slideshow you have or making…at the top, click on the Slider Settings tab, then select Appearance. In the drop down skin list, select the skin you want. But please note that the curve will only show on the front page showcase area….not on inner pages. This is why there are two skins, one for the front page showcase with the curve, then the other is for inner pages. This theme only has the curve set for the front page.