Style used by default for the thumb that is dragged in GUI.HorizontalSlider controls.
The padding property is used to determine the size of the thumb.
// Modifies only the horizontal slider thumb style of the current GUISkin
var hSliderValue : float = 0.0;
var style : GUIStyle;
function OnGUI () {
GUI.skin.horizontalSliderThumb = style;
hSliderValue = GUILayout.HorizontalSlider (hSliderValue, 0.0, 10.0);
}