Color changing

[IrvingvB]

Hello, I have a question. How do I change these black colors

Page 1 (http://i42.tinypic.com/qpfjw0.jpg) - Page 2 (http://i42.tinypic.com/mlgzly.jpg)

I know that the "tborder"-color is used for these two, but I cant find where I should change this, because I want to change it to my "alt1"-color.