Using the rectangle background with $epslatex seems to hide the axis
annotations and scales of the figure. I suppose that this is the reason why
$eps, $epslatex and $epslatex_standalone were treated differently. Except
that the two lines need to be deactivated.
Using the lisp lines that you pointed out, I modified my gnuplot.lisp in order
to delete "set obj 1 fc rgb" in ~/maxout. (see patch, lines at 2806,2813)
Best regards
*** gnuplot.lisp_bak 2018-05-18 11:32:33.229304308 +0200
--- gnuplot.lisp 2018-05-18 11:33:43.292520843 +0200
***************
*** 2806,2813 ****
; save in plotcmd the gnuplot preamble
(setf plotcmd
(concatenate 'string
! (if *multiplot-is-active*
! ""
(format nil "set obj 1 fc rgb '~a' fs solid 1.0 noborder ~%"
(get-option '$background_color)) )
(if (equal (get-option '$proportional_axes) '$none)
--- 2806,2813 ----
; save in plotcmd the gnuplot preamble
(setf plotcmd
(concatenate 'string
! (unless (or *multiplot-is-active*
! (member (get-option '$terminal) '($eps $epslatex $epslatex_standalone)))
(format nil "set obj 1 fc rgb '~a' fs solid 1.0 noborder ~%"
(get-option '$background_color)) )
(if (equal (get-option '$proportional_axes) '$none)