"Kenneth" <kdw### [at] gmailcom> wrote:
>
> The background *within* your box map does indeed show up as green now-- but does
> PB's question concern the *surrounding* area? That renders as black, regardless
> of the background color.

[running v3.8 beta 1]

I just discovered by chance that adding Output_Alpha=on (or +ua) makes the
surrounding area transparent, rather than black--if that has any practical use.

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