Hi, I played around with different fonts, especially Bitstream XCharter and Overpass (http://overpassfont.org/) and wanted to combine them. However, I see some issues regarding ligatures, kerning and obliques/italics. Here is a minimal example: ``` \definefontfeature[default][mode=node, kern=yes, liga=yes] % more features % [mode=node, kern=yes, liga=yes, tlig=yes, itlg=yes, ccmp=yes, language=dflt, protrusion=quality, expansion=quality] \definefontfamily [myfont][roman][xcharter] \definefontfamily [myfont][sansserif][overpass][rscale=0.93] \definefontfamily [myfont][teletype][overpass][rscale=0.93] \definefontfamily [myfont][mono][overpassmono][rscale=0.93] \definetypeface [myfont][mathematics][math] [xcharter] \setupbodyfont[myfont, 11pt] \startTEXpage \showfontkerns Vitae, Vase, LT, VA, Y., Effizient, abcdel™, \italic{effi abcdel™}, \slanted{effi abcdel™}\\ \style[sans]{Vitae, Vase, LT, VA, Y., Effizient, abcdel™, \italic{effi abcdel™}, \slanted{effi abcdel™}}\\ \style[mono]{Vitae, Vase, LT, VA, Y., Effizient, abcdel™, \italic{effi abcdel™}, \slanted{effi abcdel™}}\\ \showbodyfont[myfont] \stopTEXpage ``` It produces the PDF in the attachment. I'm struggling with several things: - xcharter seems to have no kerning applied. It is listed as font feature, though. Is it correct to have no kerning at all for that font? - xcharter also have no ligatures (at least it doesn't look like that). That is listed as font feature, too, although only for italic and slanted. According to https://tug.org/FontCatalogue/xcharter/ there are ligatures in the font. - Overpass has a glyph for the ae ligature. Is it normal that it is not used as a ligature for ae? - Overpass Mono does not contain italic glyphs. I would have expected obliques when using \slanted then. However, it just remains normal. - I included the ™ in the example since its italic glyph is not slanted. For all fonts \slanted seems to switch to the extra (italic?) glyphs, while I would have expected obliques. At least overpass seems to have no dedicated slanted style, while xcharter has one. - Is there a command to show ligatures the same way there is a command for kerning? I attached the output of the following commands, too: mtxrun --script font --list --file --info --pattern='xcharter*' mtxrun --script font --list --file --info --pattern='overpass*' Thanks Gerion