Scrolling on Windows
On my Windows 8 machine I use a utility, Auto Hotkey, to reverse the direction of the scroll wheel on my mouse, so that it matches my iDevices... However, Vivaldi's scrolling doesn't honor that, it sticks with the system default scrolling. That is, with my utility I scroll up on the wheel to make the content of the pages scroll up, scroll down on the wheel to make the content scroll down. This is the opposite direction than the scroll bar's thumb moves.