/** Draws hilight ring over slot. */
protected virtual void drawRing()
{
if (RingColor != Color.clear && RingSprite != null)
{
Color oldColor = SmartUI.Color;
SmartUI.Color = RingColor;
SmartUI.DrawSliced(new Rect(X, Y, Width, Height), RingSprite, new RectOffset(4, 4, 4, 4));
SmartUI.Color = oldColor;
}
}
