Wish WYSIWYG preview window to match the variant!

I Erel,

I would like to suggest updating the default variant value to the developing screen, and not 600x600 as it is now the default value.
Also, when previewing, even though the ONLY existing variant is different than the default one, it always shows the preview as 600x600, this should change too!

The WYSIWYG form acts like a standard resizable form. You can resize it however you like.
The variants feature should be used very carefully. Prefer anchors and designer script over multiple variants.

Imagine i design a form to be fixed sized 600x400( non-resizable). I don't really care about the "final client" screen size. My Dev screen is 1366x768. The preview, even if I set the only existing variant to be the size I really want and need, the preview will only show the default 600x600!
I know when and why to use anchors, but I'm talking about a fixed size form and the corresponding preview!