How do I choose the color of the border?

To set border color first get into the edit mode and click on the pencil icon. Next click on the style tab and choose the border icon. Then choose which edges and click on the edge buttons. Finally choose the border color from the drop down menu.

Here is how to choose the color of the border:

Step 1: Get into the border menu.
Step 2: Define border edges (A).
Step 3: Set the width (B)
Step 4: Click on the color menu (C) and choose the color you want and Click done