OMG! TIL about option-clicking the scrollbar. And here I thought I'd option-clicked everything by now...

Windows also advances by page when clicking in the gutter, BUT based on the handle size it seems like the example scrollbars are not demoing a large enough scroll area to show both behaviors.

There is a setting to change this behavior. It’s in System Preferences->General->“Jump to the spot that’s clicked”

You can change that behavior in System Preferences > General.

Related: on Macs, holding the Shift key makes the scroll wheel (and two-finger touchpad scrolling) scroll horizontally instead of vertically.

X on Linux (Xfce) it advances by page, by shift-clicking in the gutter!

Where do I reverse this? So that it advances by page when clicking in the gutter, and it jumps to that position when shift-clicking in the gutter.

Likewise I remember Windows also jumping by a page. I remember being confused when I first experienced jumping to that position upon switching to Ubuntu.

I came here to say just that.