Ok, i think i just found out that i have no problem with Syntax Highlighter plugin. The black scroll bar color is appears because of my own custom blog theme. I try to find the keyword "scroll" on the theme of my blog, and I found it.
This is the source that i found in my blog theme :
::-webkit-scrollbar {
height:12px;
background: #474747;}
::-webkit-scrollbar-thumb {
background-color: #000;
}
I just change the color above and the problem solved..