Wolfgang, explaining the following sample to ConTeXt newbies, I have a problem: \setuppapersize[A5, landscape] \definefontfamily[mainface][rm][TeX Gyre Pagella] \definefontfamily[mainface][tt][DejaVu Sans Mono][rscale=0.825] \setupbodyfont[mainface, 22pt] \starttext \startmakeup[standard] This is available at {\tt https://contextarden.net}. \stopmakeup \stoptext The problem is how to explain to someone who never used anything similar to ConTeXt or TeX how she has to calculate the scale ratio. It is even not simple to myself. rscale is a useful option, but it would be great to have the auto value that does all the math for the user. Would it be possible that rscale could have the auto value? Many thanks for your help, Pablo -- http://www.ousia.tk