I consider the look of the relative size bars a regression in Opus 10. Directory Opus has always been the swiss army knife where the user can change ANYTHING to suit his or her needs. Now being forced to display the graphs with a border and not being able to change from the stupid glossy Star Trek gradient to a simple left to right gradient (where the prefs under diagrams are still called "left" and "right" for the gradient) is WRONG.
This also goes together with the complaints in [url]Relative Age and Relative Size Graphs] where the source and destination lister can be switched from glossy to single colour but not back to a nice gradient. I never considered those gradients "Windows 95 style" because I have never used Windows 95 (thank god I still was happily using my Amiga back then) but "nice Opus gradients". Those are now gone. WRONG again.
+1 for more flexibility.