Style used by default for the thumb that is dragged in GUI.VerticalScrollbar controls.
// Modifies only the vertical scrollbar thumb of the current GUISkin
var hSbarValue : float;
var style : GUIStyle;
function OnGUI () {
GUI.skin.verticalScrollbarThumb = style;
hSbarValue = GUILayout.VerticalScrollbar (hSbarValue, 1.0, 0.0, 10.0);
}