Give this a try. I used some snippets in the LSR to apply a giant markup
black background and changed everything to white.
\version "2.17.29"
#(define (override-color-for-all-grobs color)
(lambda (context)
(let loop ((x all-grob-descriptions))
(if (not (null? x))
(let ((grob-name (caar x)))
(ly:context-pushpop-property context grob-name 'color color)
(loop (cdr x)))))))
\relative c'' {
\applyContext #(override-color-for-all-grobs (x11-color 'white))
c4\pp\< d e f
\grace { g16[( a g fis]) } g1\ff\!
% place in bottom layer
-\tweak #'layer #-1
-\markup {
\with-dimensions #'(0 . 0) #'(0 . 0)
% specify color
\with-color #(rgb-color 0 0 0)
% specify size
\filled-box #'(-1000 . 1000) #'(-1000 . 4000) #0
}
}
-----
Ryan McClure
Luna Music Engraving
www.lunamusicengraving.com
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