You can use alternate colors for the links if it’s a forum, or a site that people come back often to prevent ad blindness. The format to rotate 3 colors randomly for the links is: google_color_link = [â€0000CCâ€,â€800000″,â€005500″]; This will rotate the colors in the bracket randomly.
I never heard of that "array colors" option. Are you getting that code from your AdSense account ? Of course, on your sever you can make a simple script to fill that color randomly: google_color_link = "0000CC", or google_color_link = "800000", or google_color_link = "005500"
I am not sure if it works, and even so if it is allowed. The best option would be to do the processing on server side and generate the color randomly. The generated code can look exactly like what is copied from adsense control panel.