Glyphs-Handbook-2013

Kerning exceptions are handled per glyph. Move the cursor
to the left of the glyph you want to define an exception
for and open the lock. Close the lock again to remove the
exception for that glyph. Within one pair, the kerning can be
an exception for one glyph while it applies to the whole group
for the other glyph. E.g. the kerning value defined for ‘Tö’ can
be an exception for ö, since it does not apply to the other o
glyphs. Thus, for ö, the left lock is open. However, the value
does apply to all T’s including variations like Ť or Ț. So, for T,
the right lock is closed.
7.2.3 Viewing Kerning Pairs
The Kerning window (Window > Kerning ) lists all available
kerning pairs, sorted by the first glyph or glyph class of the
pairs. Clicking on a pair displays it in the current Edit tab.
Make sure the Kerning button in the bottom right corner
of the window is on. Groups are marked with an at sign, e.g.
‘@A’ for the A kerning group, and displayed in dark blue.
Individual letters are diplayed in beige.
You can color mark the kerning between glyphs in a sample
text in Edit view if you display the measurement line. For
more details, refer to section 2.7, ‘Measuring’ (p. 23).
7.2.4 Deleting Kerning Pairs
Clicking on the Minus button in the bottom left corner of the
Kerning window deletes all currently selected kerning pairs.
7.2.5 Cleaning up Kerning
After removing glyphs or after importing, invalid or
impossible kerning pairs may be left. You can remove them
with the Clean Up function from the gear button in the
Kerning window.
7.2.6 Compressing Kerning
As soon as you have kerned a few individual pairs and have
set kerning groups, you can take the kerning onto the group
level with the Compress function of the gear button in the
Kerning window. The function turns individual kerning pairs
into group kerning pairs, employing the groups the individual
letters belong to. Compressing kerning will keep explicit
kerning exceptions that dier from the group kerning, but will
Glyphs Handbook, May 2013 65