Re: white text on black background

[Marius Amado Alves]

On 11 Feb 2006, at 12:33, I myself wrote:

> Is there a way to typeset white text on a black background?
>
> This is to make scores for a children's instrument that has chord keys 
> white for Major, black for minor. \box serves fine for the former.

While waiting for a knowledgeable reply on this list, which never came, 
I managed to find a solution. The snippet below represents a white A 
over a black square (signifying the key for the chord of A minor on the 
aforementioned children's instrument, a Bontempi electric organ). It 
took a fair amount of experimenting to get it right, principally given 
the utterly sparse documentation about \filled-box and \with-color 
notably regarding the form and semantics of their arguments. And, 
beware, this markup does not seem to fit well in some deeply nested 
contexts e.g. as a component of the argument of \center-align (I 
suspect it must be cast into a stencil in which case I'm hoping not 
having to go there alone in the near future...)

\markup{\combine \filled-box #'(-.3 . 1.8) #'(-.3 . 1.8) #0 \with-color 
#white A}