You're not paying attention to Chris' posts! As he's already told you, the Scrollbar from MS Forms 2.0 is not a replacement for the standard Access scrollbars used to scroll text, which is what you're talking about! It's a control that is used to change the value of a field, much in the same way as a slider control changes the volume in Windows Volume Control, This scrollbar is not used to scroll text!
As to changing the color of the standard scrollbars, that's determined by the individual PC's Windows setting, just like the color of command buttons. Some things. like command buttons, you can work around, placing colored labels on top of the buttons, but the design/nature of a scrollbar would preclude this type of hack.