I'm glad to see that the Emulator has been improved. But there are some "WTH" issues in the UX. In no particular order...

1. DON'T blur the content when resizing -- I frequently want to see how objects flow as the browser width changes, this exposes flaws in CSS or coding and I can't see what's happening when It's blurry.

2. Disabled the editor in the Emulation mode (Add one of the fingers at the top bar to disable it, next to the rotate button) - I need to engage with the site and without it disabled it think I want to edit.

3. Keep responsive bar visible (and give it more contrast and a bar drag icon) - don't make me click 3 more time to scale the editor.

4. Enable the "escape" button (and or clicking outside of the emulator) to exit Emulate mode.