default aspect ratio on cairo terminals

[Dmitri A. S. <das...@gm...>]

Since one of the advantages of cairo-based terminals is a consistent
rendering,
should not they have the same default aspect ratio?
Currently pngcairo is 640x640 points, epscairo and pdfcairo is 5"x3".
(I am not sure about wxt itself -- the windows appars to be 640x480, but
that
includes menu.)

I personally like 640/480 = 1.333 aspect more than 5/3 = 1.666, so I
suggest changing
defaults for pdfcairo and epscairo to 5in X 3.75in.

Sincerely,
Dmitri.
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