[NTG-context] middle align without ascenders and descenders

Dear list, I have the following code: \setuppapersize[S6] \usemodule[simplefonts][size=340pt] \setmainfont[TeX Gyre Pagella] \setupmakeup[standard][align=middle] \starttext \startstandardmakeup aa \stopstandardmakeup \startstandardmakeup db \stopstandardmakeup \startstandardmakeup pq \stopstandardmakeup \stoptext This sample shows something that I want to avoid: when centering text vertically, is there a way that by default the text would be centered not taking in account ascenders and descenders? So the text in the sample above would be read at the same height in the three slides. Many thanks for your help, Pablo -- http://www.ousia.tk