Thank you Wolfgang! Your example works as intended. I really get lost in the font definition files, as it is difficult to understand which variable point to what other definition. Is there a (simple) picture where the scripts are annotated with arrows, to know which variable points to where? All the way back to the mtxrun --script fonts --list --all --pattern=* reply? With all the options available it is a steep learning curve, but i hope to be able to understand it at some point. Thanks for the working solution. .Floris

Am 03.05.2020 um 13:36 schrieb Floris van Manen :

Hello Wolfgang,

On 03-05-2020 10:49, Wolfgang Schuster wrote:

...

% Load IBM Plex with the regular width

% \setupbodyfont[ibmplex]

% Load IBM Plex with the thin width

%\setupbodyfont[ibmplex-thin]

A quick follow-up question.

Apparently the thin/bold/italics combination does not work. I assume this is defined in a ibmplex-thin file somwhere. If so, where is that file located? What is the formula to derive ibmplex-thin from the underlying font files?

If you can’t handle find | grep, you can use the source browser: https://source.contextgarden.net/?search=ibmplex-thin and you’ll find type-imp-plex.mkiv: https://source.contextgarden.net/tex/context/fonts/mkiv/type-imp-plex.mkiv?s... in there are the typescripts for all the weights. And there’s actually a bug in the setup for light-bolditalic: \edefinefontsynonym [\typescriptprefix{\typescriptone}\s!Bold] [\s!file:\typescriptprefix{n:plex\typescriptone}-light] [\s!features=\typescriptprefix{f:plex\typescriptone}] \edefinefontsynonym [\typescriptprefix{\typescriptone}\s!BoldItalic] [\s!file:\typescriptprefix{n:plex\typescriptone}-light] [\s!features=\typescriptprefix{f:plex\typescriptone}] That should be -lightitalic Best, Hraban

Floris van Manen schrieb am 03.05.2020 um 18:24:

I noticed that the same font test with the same lmtx versions on two different linux machines with the same ibmplex fonts installed, return a different rendering for the bold-italic. That is only one produces the italics, the other doesn't.

I guess that is an example of true software magic, or yet another evidence that one observation will invert the result of the other ;-)

Even with this example: \definefontfamily [mainface] [rm] [IBM Plex Serif] %\definefontfamily [mainface] [rm] [IBM Plex Serif] %  [tf=file:ibmplexserifthin, %   it=file:ibmplexserifthinitalic, %   bf=file:ibmplexserifregular, %   bi=file:ibmplexserifitalic] \definefontfamily [mainface] [ss] [IBM Plex Sans] %\definefontfamily [mainface] [ss] [IBM Plex Sans] %  [tf=file:ibmplexsansthin, %   it=file:ibmplexsansthinitalic, %   bf=file:ibmplexsansregular, %   bi=file:ibmplexsansitalic] %\definefontfamily [mainface] [tt] [IBM Plex Mono] [features=none] \definefontfamily [mainface] [tt] [IBM Plex Mono]   [features=none,    tf=file:ibmplexmonothin,    it=file:ibmplexmonothinitalic,    bf=file:ibmplexmonoregular,    bi=file:ibmplexmonoitalic] \definefontfamily [mainface] [mm] [TeX Gyre Bonum Math] \setupbodyfont[mainface] \starttext \rm \tf Regular, \it Italic, \bf Bold and \bi Bolditalic \ss \tf Regular, \it Italic, \bf Bold and \bi Bolditalic \tt \tf Regular, \it Italic, \bf Bold and \bi Bolditalic \stoptext Wolfgang