Is the sidebar width in Open & Save Dialogs adjustable in Yosemite?

[Slet]

Under Mavericks, the width of the sidebar in Open & Save Dialogs for (most) applications is non-adjustable, it is set at a fixed width, has this changed in Yosemite?

 

[Just_Me_D]

I personally do not know, and I haven't come across any material to say that it has changed to this point.