From what I know the eraser will not erase the background if that image is trully set as background from the Page Panel.

I'm not really seeing any issues loading pages in design mode.  On a complex app that we have it takes less than 2 seconds to move between pages in design mode and about the same amount of time to move to interact mode.  I am going to close this topic for now.  Try the latest version 3.3, if you still have an issue we may need to look at your app.  I'm sure by now you have optimized your graphics. Do you have animations with a ton of frames?

This has been fixed in version 3.3 which is being released in the next few hours.

We are working on a fix for the Photoshop import problem. I assume you are using a Windows computer since it seams to be isolated to Windows.

Fixed in version 3.3.

We are working on a fix for the Photoshop import problem. I assume you are using a Windows computer since it seams to be isolated to Windows.

This will be addressed in version 3.3.

Fixed in version 3.3

We were able to recreate this problem and we are working on a fix.