By adding this control to your slider you have access to its option which will be explained below.

Hide circle timer when mouse leaves sliderIt hides circle while mouse is not on slider.
It hides circle over Youtube/Vimeo video.
Hide circle timer under this window width It hides bullets under this window width
Circle strokeSpecifies the stroke of circle in pixel.
Circle radius Specifies the radius of circle in pixel.
Circle colorSpecifies the fill color of circle


Below figure shows these options on Master Slider panel.