In Debian, evince has the same problem (ugly preview); instead qpdfview preview is OK. maybe some aliasing option?
evince (ugly) uses cairo, qpdfview (good) uses qt.
Zooming out the preview becomes uglier, but - evince emboldens too much - qpdfview shifts the emboldened glyphs downward
On 10/4/2018 4:10 PM, mf wrote: that why i suggested a vshift \definefontfeature[emboldened][effect={width=0.18,delta=0.4,factor=0.3,vshift=.4}] ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------