Right now we support svg, png and jpg. You can also export individual object styles as css.

Thanks, large website design should be no problem. We have been testing this feature on examples with a lot more complexity than the examples used to illustrate the post.

It should perform well even on much more complex designs, performance is something that has been top of mind for our engineers throughout.

We have been working on new tools for grid based design for screens. I am the author of the post and I am happy to answer any questions.