On Wed, 23 Aug 2017, Fabrice Couvreur wrote:
Hello, I would like to have three corners rounded as in the figure.
Not sure if you had simplified your example or not. But if all you want is a rounded corner, you can consider using corner=number parameter of framed and framed text: http://wiki.contextgarden.net/Framed#Rounded_Corners Here is an example (that does not use metapost). \definecolor[MyColorA][r=0.8784, g=0.8784, b=0.8784] \definecolor[MyColorB][c=0.00,m=0.27,y=1.00,k=0.00] \defineornament [FrameTitle] [preset=lefttop] [ frame=off, foregroundstyle=\bfx, foregroundcolor=white, background=color, backgroundcolor=MyColorB, ] \defineframedtext [FramedText] [ offset=0.6em, toffset=\lineheight, background=color, backgroundcolor=MyColorA, foregroundstyle={\switchtobodyfont[10pt]}, align=verytolerant, frame=off, corner=01, ] \showframe \starttext \FrameTitle{Info}{\startFramedText[width=10cm] L'équivalent vingt pieds (EVP) est une unité de mesure de conteneurs (de longueur courante 20 pieds, soit environ \unit{6,1 meter}). 1 EVP représente environ \unit{38,5 cubic meter}. \stopFramedText} \stoptext