So some of you can't use ALT+Mousewheel for Zooming in Roll20 with the Chrome web browser?
Never had a problem with it, excepting that the Zoom level at the Toolbar isn't synced at all (*) with the Zoom level reached by means of ALT+Mousewheeling.
(*) I mean, you can be viewing something at 250% while the Zoom tool shows 80%, for instance.
(Edited for clarity.)