Interpolation — Dunbar Design Repository

Tools For Interpolation – An Interview with Erik van Blokland

Erik van Blokland and CJ Dunn | May 10, 2026

A conversation with Erik van Blokland about his history with interpolation technology, variable fonts, and font technology in general.

Tools For Interpolation – An Interview with Erik van Blokland

Seeds planted for variable fonts @ TypoLabs Berlin

Watched talk at TypoLabs in Berlin by Behdad Esfabod "Open Type GX : Bringing Font Variations to Open Type" showing proto-variable fonts

Reduced boldest stem weights for better contrast

Note: “*new_ultra is 80% between ultra and med”

Fine tuning stem weights for each styles

Trying to work out the exact weights using interpolation and extrapolation in Superpolator app (by Erik van Blokland) and UFO Stretch (by Frederik Berlaen) and ScaleFast RoboFont plugin by Loïc Sander 🅢

Exploring x-height variations

Superpolator x-height tests “Dunbar xheight tests_1.5.sp3”

[Tall Comp Med] adjust /eight and /three based on scaleFast interp interpolated -17 back

12 file(s) changed

contents.plist
eight.glif
three.glif
[...]

[Tall Comp Medium] adjust /zero based on interp

4 file(s) changed

layerinfo.plist
zero.glif
zero.glif
[...]

reinterpolate scalefast Tall Comp Med

35 file(s) changed

A_E_.glif
O_.glif
a.glif
[...]

[Tall Comp Light] adjust .dnom glyphs to match full size figures. Trying reinterpolating Medium figures and regenerating .dnoms using scalefast to compare

21 file(s) changed

contents.plist
layerinfo.plist
nine.dnom.glif
[...]

[Low Comp Light] copy in all lc anchors from scaled interpolated source

48 file(s) changed

a.salt_low.glif
a.glif
a.salt_low.glif
[...]

[Low Comp Light] adjust lc glyphs based on scaled and interpolated sources

21 file(s) changed

contents.plist
e.glif
j.glif
[...]

[Low Comp Light] work on curves of /n and /h using scaled and interpolated glyphs

9 file(s) changed

contents.plist
h.glif
n.glif
[...]

[Low Comp Light] adjusting lc based on scaleFast interpolation to match Tall changes in /b /d /p /q and /g, making /n and /h more consistent

29 file(s) changed

fontinfo.plist
c.glif
contents.plist
[...]

[Tall Comp Medium] copy in interpolated kerning from Tall Comp Ultra and Tall Comp Light

1 file(s) changed

kerning.plist

reinterpolate scalefast temp

258 file(s) changed

A_.glif
A_E_.glif
A_dieresis.salt.glif
[...]

reinterpolate scalefast temp

78 file(s) changed

A_.glif
A_E_.glif
C_.glif
[...]

[Tall Comp Med] adjust /f top curve based on interpolation between updated Light and Ultra

5 file(s) changed

f.glif
layerinfo.plist
f.glif
[...]

adjust all /n and related glyphs (h, m, u, eng etc) so that right side always has a tighter sidebearings than left. Some rounding errors made them even before. Also need to check all stem weights to make sure things interpolate correctly in between

19 file(s) changed

eng.glif
h.glif
hbar.glif
[...]

copy in reinterpolated version with correct xheight

559 file(s) changed

fontinfo.plist
I_.glif
a.glif
[...]

[Tall Cond Light, Ultra] update ogoneks in Light and Ultra, need to reinterpolate and update in Medium Next

45 file(s) changed

eogonek.glif
layerinfo.plist
U_ogonek.glif
[...]

[Tall Cond Med] start adjusting anchor position to match interpolated sources (so far all uc and lc up to /d), rebuild accents

669 file(s) changed

A_E_.glif
contents.plist
A_E_.glif
[...]

[Cond Med] adjust math symbols (now wider than uc and lc, just did a straight interpolation between Cond Light and Cond Ultra)

27 file(s) changed

approxequal.glif
contents.plist
greaterequal.glif
[...]

reinterpolated breve.cmb using scaleFastNoUI script, copied into Tall Medium

4 file(s) changed

breve.cmb.glif
breve.cmb.glif
breve.lc.glif
[...]

[Tall Medium] working of breve, need to reinterpolate

22 file(s) changed

breve.cmb.glif
contents.plist
breve.cmb.glif
[...]

fix /eth for interpolation so handles don't disappear, /becyrillic intermediates

15 file(s) changed

eth.glif
layerinfo.plist
eth.glif
[...]

adjust /eth handles for better interpolation

1 file(s) changed

eth.glif

[Low Hairline] fix sidebearing bugs (from CJ interpolated version)

4 file(s) changed

ecyrillic.glif
ecyrillic.salt_tall.glif
ereversedcyrillic.glif
[...]

[Low Extra Light] fix sidebearing bugs (from CJ interpolated version)

1 file(s) changed

iucyrillic.glif

[Low Book] fix sidebearing bugs (from CJ interpolated version)

1 file(s) changed

kadescendercyrillic.glif

[Low Bold] fix sidebearing bugs (from CJ interpolated version)

2 file(s) changed

iocyrillic.glif
yericyrillic.glif

[Tall Med] reinterpolate germandbls

4 file(s) changed

contents.plist
germandbls.glif
germandbls.glif
[...]

remove interpolated Low Masters for now

1463 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

add interpolated masters for Low Medium and Low Light (to line up with Tall masters)

1462 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

[Ultra] fix /s.salt_low (this is pretty much only used for interpolataion with Low for lighter styles since Low has no Ultra weight)

10 file(s) changed

s.salt_low.glif
contents.plist
s.salt_low.glif
[...]

fix VF interpolation issues, rebuild VF

11 file(s) changed

build_vf_Series_wght_XHGT_wdth+Text.sh
Dunbar_Tall_Cond-VF_wght_XHGT_wdth_Text.ttf
ogonek.lc.glif
[...]

[Cond Ultra] dnom interpolate stems

12 file(s) changed

eight.dnom.glif
eight.numr.glif
five.dnom.glif
[...]

working on /eogonek interpolation and supports, still needs work around wdth = 85% > 99% in all weights

13 file(s) changed

contents.plist
eogonek.glif
layerinfo.plist
[...]

[Hairline] copy interpolated glyphs to bg layer "scaled-ref", adjust uc proto and lc proto, [Light] adjust /f RSB, was too tight

623 file(s) changed

D_.glif
O_.glif
contents.plist
[...]

[Tall Hairline] copy interpolated glyphs into source

539 file(s) changed

A_.glif
A_E_.glif
A_E_acute.glif
[...]

/section adjusting for interpolation

11 file(s) changed

section.glif
contents.plist
layerinfo.plist
[...]

[Tall Light] punctution, adjusting /section ,still needs work for smoother interpolation

45 file(s) changed

contents.plist
greaterequal.glif
layerinfo.plist
[...]

[Tall Light] interpolate DNOMs

10 file(s) changed

eight.dnom.glif
five.dnom.glif
four.dnom.glif
[...]

[Tall Ultra] adjust /section, make to of /S narrower, copy in interpolated /paragraphy

15 file(s) changed

S_.glif
paragraph.glif
section.glif
[...]

adjust /ae and /oe drafting, fix /mu, copy in guillemots from scalefast interpolated version

26 file(s) changed

ae.glif
contents.plist
fraction.glif
[...]

[Tall Ultra] /eth adjust based on interpolated scalefast version, adjust punctuation

35 file(s) changed

cent.glif
contents.plist
eth.glif
[...]

[Tall Ultra] adjust /two to have less tapering, interpolate and adjust ordinals, [Tall Med] adjust ordinals

28 file(s) changed

contents.plist
ordfeminine.glif
ordmasculine.glif
[...]

[Low Bold] copy in uc glyphs from interpolated .ufo

222 file(s) changed

A_E_.glif
A_E_acute.glif
A_dieresis.salt.glif
[...]

[Medium] update /G from interpolation, adjust width and weight of /W, adjust bar position for /A

11 file(s) changed

G_.glif
layerinfo.plist
A_.glif
[...]

interpolate and copy in changes to Medium

5 file(s) changed

Q_.glif
C_.glif
G_.glif
[...]

[Medium] reinterpolate /asterisk between Ultra and Light

5 file(s) changed

asterisk.glif
contents.plist
asterisk.glif
[...]

working on /six and /nine, need to adjust Medium based on interpolating Ultra and Light, and compare to regular width Medium

24 file(s) changed

nine.glif
layerinfo.plist
contents.plist
[...]

[Medium] reinterpolate /zero from Light and Ultra

1 file(s) changed

zero.glif

[Medium] adjust interpolated /two

9 file(s) changed

contents.plist
layerinfo.plist
two.glif
[...]

[Medium] copy in reinterpolated figures

8 file(s) changed

five.glif
four.glif
nine.glif
[...]

temp copy anchors from Light to Medium (need to go back and interpolate anchor position between Light and Ultra, but currently this gets lost using ScaleFast

40 file(s) changed

s.glif
A_.glif
A_E_.glif
[...]

[Ultra] adjust /s for interpolation

5 file(s) changed

layerinfo.plist
s.glif
s.glif
[...]

fix /g for interpolation

2 file(s) changed

g.glif
g.glif

add /e with horizontal terminal, adjust /a for interpolation

18 file(s) changed

a.glif
O_.glif
contents.plist
[...]

[Tall Bold] add interpolated adjusted b.salt_kursiv

6 file(s) changed

b.salt_kursiv.glif
contents.plist
layerinfo.plist
[...]

[Low Book Italic] copy in interpolatedkerning changes

1 file(s) changed

kerning.plist

[Tall Light] adjust /e.salt_kursiv in roman so it will interpolate better

11 file(s) changed

contents.plist
e.salt_kursiv.glif
layerinfo.plist
[...]

[Tall Bold Italic] copy in non skewed glyphs from interpolated source

3 file(s) changed

layerinfo.plist
registered.glif
kerning.plist

copy interpolated kerning into Tall Medium Italic

1 file(s) changed

kerning.plist

[Tall Ultra Italic] fix spacing for /registered +24 units right (need to check Medium and reinterpolate Bold)

1 file(s) changed

registered.glif

[Tall Medium Italic] interp kerning diff and apply

1 file(s) changed

kerning.plist

[Tall Medium Italic] interpolate shifted /trademark and /registered

2 file(s) changed

registered.glif
trademark.glif

Mid Light Italic interpolate kerning, stash everything else

1 file(s) changed

kerning.plist

add kerning for /n/b.salt_kursiv for masters and interpolate

15 file(s) changed

kerning.plist
kerning.plist
kerning.plist
[...]

Tall Bold Italic reinterpolate kerning

1 file(s) changed

kerning.plist

Mid Light Italic reinterpolate kerning

1 file(s) changed

kerning.plist

reinterpolate kerning for Mid masters

3 file(s) changed

kerning.plist
kerning.plist
kerning.plist

[Low Light Italic] copy in interpolated kerns for /M.salt_kursiv

1 file(s) changed

kerning.plist

[Low Book Italic] copy in interpolated kerns for /M.salt_kursiv

1 file(s) changed

kerning.plist

[Low Medium Italic] copy in interpolated kerning for /M.salt_kursiv

1 file(s) changed

kerning.plist

copy latest, adjusted interp version to bg layer

52 file(s) changed

a.glif
ae.glif
aogonek.glif
[...]

copy in uc and sorts from interpolated source

297 file(s) changed

A_E_acute.glif
A_acute.glif
A_breve.glif
[...]

[Low Book Italic] go back to skewed version and copy in interpolated glyphs instead

1965 file(s) changed

A_.glif
A_E_.glif
A_dieresis.salt.glif
[...]

copy interpolated version to bg layer for ref

588 file(s) changed

A_.glif
A_E_.glif
A_E_acute.glif
[...]

copy interpolated version of Low Book Italic master, with skewed version as BG

846 file(s) changed

A_.glif
A_E_.glif
A_dieresis.salt.glif
[...]

try adding Low Book master again, start with version interpolated by Skateboard, then replace with glyphs from previous version

594 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

reinterpolate and replace Mid Bold ufo master

597 file(s) changed

fontinfo.plist
A_E_.glif
A_dieresis.salt.glif
[...]

re-interpolate Mid Hairline Master

474 file(s) changed

DesignSpaceProcessor_v2.py
fontinfo.plist
A_E_.glif
[...]

re-interpolate Tall Bold Italic

495 file(s) changed

A_.glif
A_E_.glif
A_E_acute.glif
[...]

fix interpolated /jacute

1 file(s) changed

jacute.glif

add Mid Light Italic interpolated Master

593 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

interpolate Mid Light Italic

593 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

interpolate Mid Light Italic master

1 file(s) changed

Dunbar_Mid_Light_Italic_temp.designspace

[Low Light Italic] copy interp ref version to bg layer

477 file(s) changed

fontinfo.plist
layercontents.plist
A_.glif
[...]

[Low Medium Italic] copy interpolated ref to bg layer

336 file(s) changed

fontinfo.plist
A_E_acute.glif
A_acute.glif
[...]

reinterpolate Low Medium and Low Light Italic for ref

18 file(s) changed

a.glif
aogonek.glif
b.glif
[...]

[Low Medium Italic] interpolate and copy to bg layer

1764 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

add low temp v2 designspace to interpolate Low Medium and Low Light (if needed)

1 file(s) changed

Dunbar_Series_slant_Low_temp_v2.designspace

add interpolated Bold Italic uc and sorts, shifted 20 units right for Low

594 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

temp designspace for interp

1 file(s) changed

Dunbar_Series_Low_Italic_temp.designspace

[Tall Medium Italic] interpolate kursiv alts

13 file(s) changed

b.salt_kursiv.glif
contents.plist
e.salt_kursiv.glif
[...]

copy interpolated kursiv glyphs for Medium

5 file(s) changed

M_.salt_kursiv.glif
b.salt_kursiv.glif
contents.plist
[...]

add interpolated instance to alt folder

584 file(s) changed

fontinfo.plist
A_.glif
A_E_.glif
[...]

update Tall Medium Italic interpolation to just use Tall masters

561 file(s) changed

fontinfo.plist
A_.glif
A_E_.glif
[...]

interpolate Tall Medium Italic

582 file(s) changed

features.fea
fontinfo.plist
A_.glif
[...]

interpolation example .sp3 files

4 file(s) changed

Dunbar_interpolation_example.sp3
Dunbar_interpolation_example_No_intermediate.sp3
Dunbar_interpolation_example_Tall.sp3
[...]

Interpolation

interpolated starting point for Text master for compatibility

581 file(s) changed

_build_Series_opsz.designspace
mutatorMath.log
fontinfo.plist
[...]

remove Text ttf interpolatable

4 file(s) changed

DunbarText-Bold.ttf
DunbarText-ExtraBold.ttf
DunbarText-Medium.ttf
[...]

Dunbar Text re-adding scrap glyphs so masters are compatible for interpolation

31 file(s) changed

contents.plist
oslash.glif
oslash.salt1.glif
[...]

interpolated lower contrast for Low Compressed Book, copied kerning for all compressed, moved older comp to scrap folder

7660 file(s) changed

[...]

Interpolation

[Low Hairline] adjusted interpolated kerning by hand

1 file(s) changed

kerning.plist

[Tall Medium] kerning updates for Medium only (non interpolated)

1 file(s) changed

kerning.plist

[Tall Medium] interpolated small changes

1 file(s) changed

kerning.plist

[Tall Medium] interpolated kerning changes btwn Tall Light and Ultra and applied to Medium

1 file(s) changed

kerning.plist

[Low Book] updated kerning via interpolated changes

1 file(s) changed

kerning.plist

[Low Book] interpolated kerning diff

1 file(s) changed

kerning.plist

[Text Medium and Bold] fixed /Udieresis.salt and /oslash and /oslashactue that didn't get interpolated correctly (reg and bold were already swapped)

7 file(s) changed

U_dieresis.salt.glif
oslash.glif
oslashacute.glif
[...]

fixed unicodes on interpolated Text weights

22 file(s) changed

fraction.glif
hyphen.glif
macron.glif
[...]

adjusted bold and medium based on extra bold and regular changes interpolated

23 file(s) changed

W_.glif
W_acute.glif
W_circumflex.glif
[...]

added interpolated Text styles from updated masters

1118 file(s) changed

fontinfo.plist
A_.glif
A_E_.glif
[...]

interpolated kerning between Low Extra Light and Low Bold and copied to Low Book, then fixed by hand

2 file(s) changed

kerning.plist
kerning.plist

added /Hbar.scrap to low from interp

8 file(s) changed

Hbar_.scrap.glif
contents.plist
Hbar_.scrap.glif
[...]

[All] updated /apple so it interpolates

12 file(s) changed

apple.glif
contents.plist
lib.plist
[...]

copied interpolated /ampersand from Tall to Low

3 file(s) changed

ampersand.glif
ampersand.glif
ampersand.glif

[Tall Medium, Ultra] adjust contrast of ampersand to make interpolations more even

2 file(s) changed

ampersand.glif
ampersand.glif

fixed /six.dnom /nine.dnom interpolation error

6 file(s) changed

nine.dnom.glif
six.dnom.glif
nine.dnom.glif
[...]

[Low Bold] raised counter to make a better interpolation

1 file(s) changed

a.salt_low.glif

[All] decomposed glyphs with mixed outlines and components to avoid shifting during interpolation

113 file(s) changed

Adieresis_.salt.glif
Eth_.glif
Hbar_.glif
[...]

[Low] copied asterisk.salt1 to all styles from interpolated Tall

9 file(s) changed

asterisk.salt1.glif
contents.plist
lib.plist
[...]

[all] decomposed all /oslash so they'll interpolate better for Text

25 file(s) changed

oslash.glif
oslash.salt1.glif
lib.plist
[...]

[Low Hairline] adjusted lc2sorts interp kerning

1 file(s) changed

kerning.plist

[Low Book] copied interpolated kerning between Low Extra Light and Low Bold

2 file(s) changed

kerning.plist
lib.plist

[Low Extra Light] copied in previous ASCII kerning on top of interpolated kerning

1 file(s) changed

kerning.plist

[Low Book] copied in previous ASCII kerning on top of interpolated kerning

1 file(s) changed

kerning.plist

[Low Bold] copied in previous ASCII kerning on top of interpolated kerning

1 file(s) changed

kerning.plist

[Low Extra Light] updated kerning from scaled/interpolated Tall kerning

1 file(s) changed

kerning.plist

[Low Book] updated kerning from scaled/interpolated Tall kerning

1 file(s) changed

kerning.plist

[Low Bold] updated kerning from scaled/interpolated Tall kerning

1 file(s) changed

kerning.plist

[Tall Medium] updated interpolated kerning

5 file(s) changed

kerning.plist
six.glif
three.glif
[...]

[Tall Medium] temp adjusted widths of figures to match interpolated Medium

10 file(s) changed

eight.glif
five.glif
four.glif
[...]

[Tall Medium] revised interpolated kerning, [Tal Light, Ultra] fixed kerning inconsistencies

5 file(s) changed

kerning.plist
kerning.plist
kerning.plist
[...]

[Low Extra Light] copied interpolated/scaled kerning from Tall (light lc > scaled > lc and ex light caps > caps)

1 file(s) changed

kerning.plist

[Low Bold] copied interpolated/scaled kerning from Tall (ultra lc > scaled > lc and bold caps > caps)

1 file(s) changed

kerning.plist

[Tall Medium] redo kerning merge so I keep the old ASCII kerns and only add the new interpolated ones

1 file(s) changed

kerning.plist

[Tall Medium] imported interpolated kerning

3 file(s) changed

groups.plist
kerning.plist
lib.plist

[Low All] added /a.salt with radial terminal, closer to original. not for interpolating, but swap at end?

8 file(s) changed

a.salt1.glif
contents.plist
lib.plist
[...]

[Low Bold] copied /C and /S and alts and accents from interpolated Tall

15 file(s) changed

C_.glif
C_.salt_low.glif
Cacute_.glif
[...]

[Low Book] copied /C and /S and accents and alts from interpolated Tall

15 file(s) changed

C_.glif
C_.salt_low.glif
Cacute_.glif
[...]

[Low Extra Light] copied updated /C /S and alts and accents from interpolated Tall

20 file(s) changed

C_.glif
C_.salt_low.glif
Cacute_.glif
[...]

[Low all] copied .salt_tall glyphs for interpolation, Hairline: copied all diacritics

110 file(s) changed

C_.salt_low.glif
K_.salt_tall.glif
Kcommaaccent_.salt_tall.glif
[...]

[Tall Medium] copies interpolated adv math into Medium

9 file(s) changed

approxequal.glif
divide.glif
equal.glif
[...]

[Tall Hairline, Light, Ultra] adjusted math symbols, need to interpolate for Medium

20 file(s) changed

plus.glif
plusminus.glif
lib.plist
[...]

[Low Book] made stems consistent, copied interpolated ext latin glyphs as a starting point

80 file(s) changed

Aogonek_.glif
Eogonek_.glif
Iogonek_.glif
[...]

[Low Bold] decomposed ogoneks for interpolation

4 file(s) changed

aogonek.glif
eogonek.glif
iogonek.glif
[...]

[all] made ogoneks compatible for interpolation, adjusted position of Low Extra Light /a center anchor (moved right)

124 file(s) changed

Aogonek_.glif
Eogonek_.glif
Iogonek_.glif
[...]

[Low Extra Light] copied caps and cap anchors from interpolated Tall Extra Light

44 file(s) changed

A_.glif
B_.glif
C_.glif
[...]

[Tall Hairline, Medium] added /logicalnot interpolated from other styles

5 file(s) changed

contents.plist
logicalnot.glif
lib.plist
[...]

[Tall all] fixed /registered.salt_big interpolation issues, adjusted /six.dnom and /nine.dnom

9 file(s) changed

registered.salt_big.glif
registered.salt_big.glif
nine.glif
[...]

[Tall all] adjusting for interpolation /registered /Scedilla /daggerdbl /Lslash

10 file(s) changed

Scedilla_.glif
registered.glif
registered.glif
[...]

[Tall Medium, Ultra] adjusting ogonek accents so they interpolate

22 file(s) changed

Aogonek_.glif
Eogonek_.glif
Iogonek_.glif
[...]

[Tall Light, Medium, Ultra] added extreme points to ogonek for interpolation

3 file(s) changed

ogonek.glif
ogonek.glif
ogonek.glif

[All] updated masters so all groups are the same so they all interpolate

10 file(s) changed

kerning.plist
groups.plist
kerning.plist
[...]

[Tall Medium] copy interpolation to bg layer, adjust /eth and bar accents, /hbar /dcroat

301 file(s) changed

AE_.glif
Aacute_.glif
Abreve_.glif
[...]

[Tall Medium] adjust interpolated glyphs

32 file(s) changed

Dcroat_.glif
Eth_.glif
IJ_.glif
[...]

[Tall Medium] adjusting interpolated Ext Latin glyphs to get contrast correct

116 file(s) changed

AE_.glif
Eng_.glif
Hbar_.glif
[...]

[Tall Medium] added interpolated placeholders for accented glyphs

312 file(s) changed

AE_.glif
Aacute_.glif
Abreve_.glif
[...]

[Tall Ligh, Ultra] fixed for interpolation

10 file(s) changed

f_i.glif
f_l.glif
lib.plist
[...]

[Tall Medium] copy interpolated glyphs for extended latin to layer "interp_ref"

416 file(s) changed

AE_.glif
A_.glif
Aacute_.glif
[...]

[Tall Ultra] adjusted stems to be more consistent (previously had rounding errors from interpolation)

20 file(s) changed

E_.glif
F_.glif
H_.glif
[...]

[Tall Light] adjusted /oslash, added broken alt for interpolation

4 file(s) changed

C_.glif
contents.plist
oslash.glif
[...]

[Tall Medium] added /S.salt0 for interpolation (same as default)

2 file(s) changed

S_.salt0.glif
lib.plist

[Tall Ultra] added /S.salt2 to be interpolatable, but this glyph is identical to the default /S

3 file(s) changed

S_.salt0.glif
S_.salt2.glif
contents.plist

[Tall Medium] added interpolated /K.salt1 unbroken

3 file(s) changed

K_.salt0.glif
K_.salt1.glif
contents.plist

[Low all styles] copied newly interpolated caps from Tall. Copied /C.salt1 with radial terminals

75 file(s) changed

A_.glif
B_.glif
C_.glif
[...]

[Low] Book: copied interpolated kerning for UC2lc pairs

3 file(s) changed

groups.plist
kerning.plist
lib.plist

[Low] all styles: copy interpolated caps from Tall for all styles

61 file(s) changed

B_.glif
C_.glif
D_.glif
[...]

delete glyphs leftover from interpolation

7 file(s) changed

contents.plist
one.46.glif
question.46.glif
[...]

copy interpolated caps from Tall to Low

75 file(s) changed

A_.glif
B_.glif
C_.glif
[...]

copying in changes from tall ultra to make interpolatable

53 file(s) changed

A_.glif
B_.glif
C_.glif
[...]

prelate, make compatible for interpolation

31 file(s) changed

a.glif
ampersand.glif
at.glif
[...]

even out metrics in medium post interpolation

23 file(s) changed

contents.plist
s.46.glif
s.glif
[...]

reinterpolated figures and symbols for medium

104 file(s) changed

contents.plist
five.glif
one.46.glif
[...]

re-interpolated figures for medium weight

161 file(s) changed

A_.alt1.glif
A_.alt2.glif
A_.glif
[...]

added ampersand, previously wasn't interpolatable (needed extra point on bottom diagonal)

1 file(s) changed

ampersand.glif