Hi, During the search Euler font, I found a manual “creating metapost outlines”. It is what I looking for at the last year. I tried an example for section head, but it issued an undefined control sequence message. Please tell me what is wrong and how to change. I copied the sample code and a part of log file at the end. Thank you for reading. Best regards, Dalyoung %%%%%%% \starttext \section{First One} This worked fine before. 이 전에는 잘 되었습니다. \startformula \int f(x) dx \stopformula \section{Second Two} Who made the Euler font. x, y, z $x^2 + y^2 = z^2$ \stoptext %%%%%%%%% tex error > tex error on line 4 in file /Users/graph/Documents/TeXfiles/test-mpgraph.tex: ! Undefined control sequence <argument> \setstrut \begstrut \getheadtitle \endstrut \MPLIBgraphictext ...\startTEXpage [scale=10000]#1 \stopTEXpage l.4 ...\setstrut \begstrut \getheadtitle \endstrut } 1 \starttext 2 \def\MPLIBgraphictext#1{\startTEXpage[scale=10000]#1\stopTEXpage} 3 4 >> \MPLIBgraphictext{\setstrut \begstrut \getheadtitle \endstrut } 5 \stoptext