Simple tutorial on scrollbars?

[Kaveh Bazargan]

I am trying to change the look of a simple scrollbar on a Mac. But changing
"foreground fill", "background fill" etc. has no effect. I have not been
able to locate a tutorial for this. Any suggestions pls?

-- 
Kaveh Bazargan
Director
River Valley Technologies <http://rivervalleytechnologies.com/> • Twitter
<https://twitter.com/kaveh1000> • LinkedIn
<https://www.linkedin.com/in/bazargankaveh/>
Phone +44 7771 824 111