[snogglethorpe]

Actually still in Gnome 3... you just need to use the "advanced settings" tool.

[I don't agree with all their choices of what to call an "advanced" setting, but I think it's appropriate classification in this case.]

[ch0wn]

I know, and I'm using it for this, but the previous dialog was just way better and user-friendly. It had large previews and descriptions while the new tweak tool only has some uncommented options in a drop-down menu.