How to set a different border-color for the tool-tip?

[smyogesh]

Hi, Thanks for this wonderful and easy to use tool-tip.
While trying out this tool, I tried to set a different border-color for the tool-tip. I added the tool-tip to the bottom. And, I could able to apply a different border-color for the rectangle box only. And, I am unable to set the border for the triangle that shows as the edge of the tool-tip.
.tipso_bubble.bottom {
border: 1px solid #000000;
}

Is there any setting available to configure the border-color for the tool-tip?

Thanks for your help.