I'm trying to enlarge the interword spacing, because with ITC Kabel's default spacing it's sometimes hard to decide where is the space between two words. I read the manual of the microtype package, and I did some trying, without success. For example this one:
\usepackage{microtype}
\SetTracking[ spacing = {1000*,1666, } ]{ encoding = T1, family = *, shape=*,series=*}{ 25 }
Maybe there is an easy solution that doesn't involve microtype?.
\spaceskipto set the interword glue, whose default values (ideal, stretch, shrink) are picked up from the font's(\fontdimen2, \fontdimen3, \fontdimen4). – ShreevatsaR Jul 19 '17 at 00:14