Is it possible to change the background color, foreground color, thumb image, or up/down button image for the scrollbar? I'm able to do this pretty easily with standard WPF controls (i.e. ListBox) by overriding the scrollbar template. Is this possible with the Xceed control?

 It's important that I be able to make the look and feel of the scrollbar blend in with the rest of the grid.

It's not easy to change the scrollbars style. I've tried with those long time ago but there's not a properly solution. By default, if you use theme in DataGrid, ScrollBars is define in theme. My work around is define another custom theme by create another theme project and define every part of the grid, then i can define my custom scrollbars styles.

 Still waiting for Xceed guys for this issue.