Kern On v 1.02

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Tim Ahrens
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Posts: 424
Joined: 11 Jul 2019

Kern On v 1.02

Post by Tim Ahrens »

Just published version 1.02. To update, head over to

Note: This update is likely to autokern the font somewhat differently.
I recommend to:
  • Fully kern the font(s) you are working on (using the “Kern On” button)
  • Create a backup copy of that file
  • Install Kern On v 1.02
  • Open the file, start Kern On
  • In case Kern On removes models (this can happen), resolve the problems
  • Open the backup file
  • In Glyphs, activate the new version (which has KO running)
  • Choose “Compare to...” the old version
  • Identify whether you need any additional models
This is also a very powerful way to determine possible necessary models or flawed auto-kerning (which is nearly the same). Often this technique of comparing to an older version of the font (whether it is kerned with a different version of KO, or has a different models set-up) is even better than Kern On’s built-in suggestions. So, don’t be upset if you need a few more models – the final result will be even better than before.

The most important changes in this version are:
  • Tabular figures are set to “No kerning” the first time you use Kern On with a font. If you add them later, just set the “No kerning” manually, although this is usually not even necessary as tnum-based pairs are not autokerned.
  • “Compare to...” now only compares the current master.
  • Comparing fonts now also reflects spacing changes.
  • Now you can click on the influencer label (under the slider) to insert it at the end of the line.
  • If a glyph is modified then Kern On also updates glyhps that contain it as a component. (I hope this is reliable. If in doubt, just close and re-start Kern On to be sure everything is up-to-date.)
  • The automatic selection of models when re-using pre-existing kerning is somewhat improved.
  • Many other significant improvements and fixes.
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