[StavrosK]

Oh, very interesting. You could add a button, though, to show the frame, or just hide it below the fold (increase the height of the visualization div). It's not like vertical space is a scarce resource, so you don't really need to hide it or to have the main div short.

[colin_scott]

Good suggestion. So, similar to this? (second tab): http://worrydream.com/TenBrighterIdeas/

[StavrosK]

That's a very nice UI, yes.

[Aardwolf]

Yep I like that suggestion, because indeed the customization thing is nice :)