Talked with Pavel and he thinks that if you've got art on, then all the art should fit. While I hesitate about that, I see the point.

Pavel experimented with sliding the device up a bit (putting the art underneath the top toolbar (and turning on some opacity)). It was interesting, though I wasn't fond of it. He indicated we cannot make the visual workspace here scrollable, like it is in Framer. (due to device emulation viewport limitations)

So..

The leading solution is that Fit to Window fits the bounding box of the device art. This pretty much guarantees a scaled experience on many laptops. 

On my 13" MBA, all devices with art including the 5X should get scaled.
Attached are the common mac osx resolutions (google analytics from a popular site). Mine is the first (1440x900) which indicates that (probably) the typical mac user has a screen like mine. :/

I want our default experience to avoid scaling for the majority of our users, if possible. Hmmm

Ideas?

Deleted: resolutions-mac osx - big site.png 18.8 KB

	resolutions-mac osx - big site.png 18.8 KB View Download

I'll second Pavel's choice that "Fit to Window" should include the device frame, particularly since the user has to opt in to that currently. Truncating the device frame strikes me as working against that choice.

I wouldn't overthink the scaling issue. Bear in mind with most devices' pixel ratio, we're already scaling the displayed content (unless the majority of those 1440x900 screens are Retina). There are also screen sizes, not viewports-- add browser chrome and even a maximized window may require scaling.

There's a third option for those that want device art AND no scaling: set the zoom to 100%. But we'll have to permit scrolling the outer container to support this without complete truncation.

sg

As of a few weeks back dgozman landed a change that meant the Fit To Window always includes the bounds of the art.
So I think we can close this as fixed now.