I was checking multiple image viewing programs in the "useful software" pastebin, but I didn't find out how any of them could do what I wanted:
Is there any program that has the similar scroll behavior as web browsers, where you press the middle mouse button and just move the mouse to pan instead of holding the button down?
If there is, what is it and how do I enable it?
[spoiler]>inb4 just set your web browser as the image viewer[/spoiler]