[racket] Can I make the frame% instances transparent?

On Sun, Jan 19, 2014 at 6:52 AM, Matthias Felleisen <matthias at ccs.neu.edu>wrote:

>
> On Jan 18, 2014, at 5:48 PM, WarGrey Gyoudmon Ju wrote:
>
> Okay, I see.
>
> Two more questions.
> 1. Can frame% instance be transparent so that I can see the 2nd top-level
> window through it?
>
>
> Are you looking for a pane?
>

Nope.

The picture below shows my target.
[image: Inline image 1]
The top-level window is my Racket GUI Application (Here iTerm2.app is used
as an example), and the second top-level window is gmail.com. I can see
both because the top-level one is transparent.
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