Hi Fabrice,

This is because you define MyColorA, MyColorB but you don't define MyColor and myColor: but you use these two colors in your MPgraphic.

Best regards: OK


> On 16 Jul 2018, at 00:03, Fabrice Couvreur <fabrice1.couvreur@gmail.com> wrote:
> 
> Good evening,
> In the code below, I get frames filled in black​ ​!
> Thank you
> Fabrice
> 
> \setupbodyfont [palatino,11pt]
> 
> \definecolor[MyColorB][c=0.00, m=0.62, y=1.00, k=0.00]
> \definecolor[MyColorA][.75(MyColorB,white)]  
> 
> \defineframedtext
>    [MyText]
>    [frame=off,
>     background=MyFrame,
>     width=\textwidth,
>     location=right]
> 
> \defineoverlay
>    [MyFrame]
>    [\useMPgraphic{MyFrame}]
> 
> \definelabel
>    [Définition]
>    [headstyle=\bf\smallcaps]
> 
> 
> \startuseMPgraphic{MyFrame}
>      picture p ;
>      p := textext.rt(\MPstring{MyFrame}) ;
>      p := p shifted (0,OverlayHeight-ypart center p) ;
>      fill OverlayBox leftenlarged .1TextWidth withcolor \MPcolor{MyColor} ;
>      fill boundingbox p withcolor \MPcolor{myColor} ;
>      draw p withcolor white ;
>      setbounds currentpicture to OverlayBox ;
> \stopuseMPgraphic
> 
> 
> \starttext
> 
> \startMyText
>      \input knuth
> \stopMyText
> 
> \startMyText
>      \input knuth
> \stopMyText
> 
> \stoptext
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