where can i find a border color on the default template?

[VBUsers]

i have attached an images of what i need to change. its in the default template and i wanted to se where is the color controled. if you can help thanks.

[peterska2]

that is the border color in the tborder css class. this is not the background color, but the color of the border set in the extra css elements box in the tborder section.