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diff --git a/AUTHORS.txt b/AUTHORS.txt
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+Production Type <[email protected]>
diff --git a/README.md b/README.md
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+Spectral by Production Type
+===========================
+
+Spectral is an original typeface primarily intended for use inside Google’s Docs and Slides.
+
+It supports Google Fonts Latin Pro glyph set, enabling the typesetting of English, Western European languages as well as Vietnamese and 130+ other languages.
+
+License
+-------
+
+Spectral is available under the SIL Open Font License v1.1, for more details see [OFL.txt](OFL.txt).
+
+Contributions
+-------------
+
+The project is led by Production Type, a digital type design agency based in Paris. 
+To contribute ideas and feedback, see [github.com/productiontype/spectral](https://github.com/productiontype/spectral)
+
+
+Source Files
+------------
+
+```
+└── sources
+    ├── BUILD.txt	# Contains informations to build the fonts
+    ├── hinting	# Hinting control files
+    │   ├── Spectral-Bold.ctrl
+    │   ├── Spectral-BoldItalic.ctrl
+    │   ├── Spectral-Italic.ctrl
+    │   └── Spectral-Regular.ctrl
+    ├── fix_weightcodes.py
+    ├── generate_webfonts.sh					# Create webfonts
+    ├── generate.sh								# Interpolate instances and build TTF files
+    ├── post_generate_desktop.sh 				# Finish TTFs for desktop use
+    ├── post_generate_ttf.sh 					# Finish TTFs
+    ├── post_generate_web.sh 					# Finish TTFs for web use
+    ├── webfont_metadata.xml
+    ├── spectral-build-italic.designspace		# Interpolation file
+    ├── spectral-build-roman.designspace		# Interpolation file
+    ├── Spectral-Italic.ufo 					# UFO source master
+    ├── Spectral-Regular.ufo 					# UFO source master
+    ├── Spectral-XBold-Italic.ufo 				# UFO source master
+    ├── Spectral-XBold.ufo 						# UFO source master
+    ├── Spectral-XLight-Italic.ufo 				# UFO source master
+    └── Spectral-XLight.ufo 					# UFO source master
+```
+
+Build Instructions
+------------------
+
+To build the fonts see [BUILD.txt](https://github.com/productiontype/spectral/sources/BUILD.txt).
diff --git a/contributors.txt b/contributors.txt
@@ -0,0 +1,5 @@
+Jean-Baptiste Levée
+Quentin Schmerber
+Dorine Sauzet
+Christoph Koeberlin
+Mathieu Réguer
diff --git a/documentation/PROD-Spectral-specimen.pdf b/documentation/PROD-Spectral-specimen.pdf
diff --git a/fonts/desktop/Spectral-Bold.ttf b/fonts/desktop/Spectral-Bold.ttf
diff --git a/fonts/desktop/Spectral-BoldItalic.ttf b/fonts/desktop/Spectral-BoldItalic.ttf
diff --git a/fonts/desktop/Spectral-ExtraBold.ttf b/fonts/desktop/Spectral-ExtraBold.ttf
diff --git a/fonts/desktop/Spectral-ExtraBoldItalic.ttf b/fonts/desktop/Spectral-ExtraBoldItalic.ttf
diff --git a/fonts/desktop/Spectral-ExtraLight.ttf b/fonts/desktop/Spectral-ExtraLight.ttf
diff --git a/fonts/desktop/Spectral-ExtraLightItalic.ttf b/fonts/desktop/Spectral-ExtraLightItalic.ttf
diff --git a/fonts/desktop/Spectral-Italic.ttf b/fonts/desktop/Spectral-Italic.ttf
diff --git a/fonts/desktop/Spectral-Light.ttf b/fonts/desktop/Spectral-Light.ttf
diff --git a/fonts/desktop/Spectral-LightItalic.ttf b/fonts/desktop/Spectral-LightItalic.ttf
diff --git a/fonts/desktop/Spectral-Medium.ttf b/fonts/desktop/Spectral-Medium.ttf
diff --git a/fonts/desktop/Spectral-MediumItalic.ttf b/fonts/desktop/Spectral-MediumItalic.ttf
diff --git a/fonts/desktop/Spectral-Regular.ttf b/fonts/desktop/Spectral-Regular.ttf
diff --git a/fonts/desktop/Spectral-SemiBold.ttf b/fonts/desktop/Spectral-SemiBold.ttf
diff --git a/fonts/desktop/Spectral-SemiBoldItalic.ttf b/fonts/desktop/Spectral-SemiBoldItalic.ttf
diff --git a/fonts/sc/SpectralSC-Bold.ttf b/fonts/sc/SpectralSC-Bold.ttf
diff --git a/fonts/sc/SpectralSC-BoldItalic.ttf b/fonts/sc/SpectralSC-BoldItalic.ttf
diff --git a/fonts/sc/SpectralSC-ExtraBold.ttf b/fonts/sc/SpectralSC-ExtraBold.ttf
diff --git a/fonts/sc/SpectralSC-ExtraBoldItalic.ttf b/fonts/sc/SpectralSC-ExtraBoldItalic.ttf
diff --git a/fonts/sc/SpectralSC-ExtraLight.ttf b/fonts/sc/SpectralSC-ExtraLight.ttf
diff --git a/fonts/sc/SpectralSC-ExtraLightItalic.ttf b/fonts/sc/SpectralSC-ExtraLightItalic.ttf
diff --git a/fonts/sc/SpectralSC-Italic.ttf b/fonts/sc/SpectralSC-Italic.ttf
diff --git a/fonts/sc/SpectralSC-Light.ttf b/fonts/sc/SpectralSC-Light.ttf
diff --git a/fonts/sc/SpectralSC-LightItalic.ttf b/fonts/sc/SpectralSC-LightItalic.ttf
diff --git a/fonts/sc/SpectralSC-Medium.ttf b/fonts/sc/SpectralSC-Medium.ttf
diff --git a/fonts/sc/SpectralSC-MediumItalic.ttf b/fonts/sc/SpectralSC-MediumItalic.ttf
diff --git a/fonts/sc/SpectralSC-Regular.ttf b/fonts/sc/SpectralSC-Regular.ttf
diff --git a/fonts/sc/SpectralSC-SemiBold.ttf b/fonts/sc/SpectralSC-SemiBold.ttf
diff --git a/fonts/sc/SpectralSC-SemiBoldItalic.ttf b/fonts/sc/SpectralSC-SemiBoldItalic.ttf
diff --git a/fonts/web/spectral-bold.ttf b/fonts/web/spectral-bold.ttf
diff --git a/fonts/web/spectral-bold.woff b/fonts/web/spectral-bold.woff
diff --git a/fonts/web/spectral-bold.woff2 b/fonts/web/spectral-bold.woff2
diff --git a/fonts/web/spectral-bolditalic.ttf b/fonts/web/spectral-bolditalic.ttf
diff --git a/fonts/web/spectral-bolditalic.woff b/fonts/web/spectral-bolditalic.woff
diff --git a/fonts/web/spectral-bolditalic.woff2 b/fonts/web/spectral-bolditalic.woff2
diff --git a/fonts/web/spectral-extrabold.ttf b/fonts/web/spectral-extrabold.ttf
diff --git a/fonts/web/spectral-extrabold.woff b/fonts/web/spectral-extrabold.woff
diff --git a/fonts/web/spectral-extrabold.woff2 b/fonts/web/spectral-extrabold.woff2
diff --git a/fonts/web/spectral-extrabolditalic.ttf b/fonts/web/spectral-extrabolditalic.ttf
diff --git a/fonts/web/spectral-extrabolditalic.woff b/fonts/web/spectral-extrabolditalic.woff
diff --git a/fonts/web/spectral-extrabolditalic.woff2 b/fonts/web/spectral-extrabolditalic.woff2
diff --git a/fonts/web/spectral-extralight.ttf b/fonts/web/spectral-extralight.ttf
diff --git a/fonts/web/spectral-extralight.woff b/fonts/web/spectral-extralight.woff
diff --git a/fonts/web/spectral-extralight.woff2 b/fonts/web/spectral-extralight.woff2
diff --git a/fonts/web/spectral-extralightitalic.ttf b/fonts/web/spectral-extralightitalic.ttf
diff --git a/fonts/web/spectral-extralightitalic.woff b/fonts/web/spectral-extralightitalic.woff
diff --git a/fonts/web/spectral-extralightitalic.woff2 b/fonts/web/spectral-extralightitalic.woff2
diff --git a/fonts/web/spectral-italic.ttf b/fonts/web/spectral-italic.ttf
diff --git a/fonts/web/spectral-italic.woff b/fonts/web/spectral-italic.woff
diff --git a/fonts/web/spectral-italic.woff2 b/fonts/web/spectral-italic.woff2
diff --git a/fonts/web/spectral-light.ttf b/fonts/web/spectral-light.ttf
diff --git a/fonts/web/spectral-light.woff b/fonts/web/spectral-light.woff
diff --git a/fonts/web/spectral-light.woff2 b/fonts/web/spectral-light.woff2
diff --git a/fonts/web/spectral-lightitalic.ttf b/fonts/web/spectral-lightitalic.ttf
diff --git a/fonts/web/spectral-lightitalic.woff b/fonts/web/spectral-lightitalic.woff
diff --git a/fonts/web/spectral-lightitalic.woff2 b/fonts/web/spectral-lightitalic.woff2
diff --git a/fonts/web/spectral-medium.ttf b/fonts/web/spectral-medium.ttf
diff --git a/fonts/web/spectral-medium.woff b/fonts/web/spectral-medium.woff
diff --git a/fonts/web/spectral-medium.woff2 b/fonts/web/spectral-medium.woff2
diff --git a/fonts/web/spectral-mediumitalic.ttf b/fonts/web/spectral-mediumitalic.ttf
diff --git a/fonts/web/spectral-mediumitalic.woff b/fonts/web/spectral-mediumitalic.woff
diff --git a/fonts/web/spectral-mediumitalic.woff2 b/fonts/web/spectral-mediumitalic.woff2
diff --git a/fonts/web/spectral-regular.ttf b/fonts/web/spectral-regular.ttf
diff --git a/fonts/web/spectral-regular.woff b/fonts/web/spectral-regular.woff
diff --git a/fonts/web/spectral-regular.woff2 b/fonts/web/spectral-regular.woff2
diff --git a/fonts/web/spectral-semibold.ttf b/fonts/web/spectral-semibold.ttf
diff --git a/fonts/web/spectral-semibold.woff b/fonts/web/spectral-semibold.woff
diff --git a/fonts/web/spectral-semibold.woff2 b/fonts/web/spectral-semibold.woff2
diff --git a/fonts/web/spectral-semibolditalic.ttf b/fonts/web/spectral-semibolditalic.ttf
diff --git a/fonts/web/spectral-semibolditalic.woff b/fonts/web/spectral-semibolditalic.woff
diff --git a/fonts/web/spectral-semibolditalic.woff2 b/fonts/web/spectral-semibolditalic.woff2
diff --git a/ofl.txt b/ofl.txt
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+Copyright 2017 Production Type ([email protected])
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/sources/BUILD.txt b/sources/BUILD.txt
@@ -0,0 +1,55 @@
+Spectral fonts build notes
+--------------------------------------------------------------------------------
+
+0. Requirements
+
+- fontbakery: https://github.com/googlefonts/fontbakery
+- fontmake: https://github.com/googlei18n/fontmake
+- fonttools: https://github.com/fonttools/fonttools
+- sfnt2woff-zopfli: https://github.com/bramstein/sfnt2woff-zopfli
+- ttfautohint: https://www.freetype.org/ttfautohint/
+- woff2_compress: https://github.com/google/woff2
+- https://github.com/twardoch/fonttools-utils/tree/master/pyftfeatfreeze
+
+--------------------------------------------------------------------------------
+
+1. Interpolate instances and build TTF files
+
+$ cd sources
+$ bash generate.sh
+
+--------------------------------------------------------------------------------
+
+2. Finish TTFs
+
+$ cd instance_ttf
+$ bash post_generate_ttf.sh
+
+--------------------------------------------------------------------------------
+
+3. Copy and finish TTFs for web use
+
+$ cd my/webfonts-folder
+$ bash post_generate_web.sh
+
+--------------------------------------------------------------------------------
+
+4. Finish TTFs for desktop use
+
+$ cd instance_ttf
+$ bash post_generate_desktop.sh
+
+--------------------------------------------------------------------------------
+
+5. Create webfonts
+
+$ cd my/webfonts-folder
+$ bash generate_webfonts.sh
+
+--------------------------------------------------------------------------------
+
+6. Create SC family
+
+$ cd my/sc-folder
+$ bash post_generate_sc_family.sh
+
diff --git a/sources/fix_weightcodes.py b/sources/fix_weightcodes.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+
+# Fix weightcodes
+
+import sys, os
+from fontTools.ttLib import TTFont
+from fontTools.ttx import makeOutputFileName
+
+inputTTF = sys.argv[1]
+
+font = TTFont(inputTTF)
+filename = os.path.splitext(inputTTF)[0]
+extension = os.path.splitext(inputTTF)[1]
+
+wght={'Spectral-ExtraLight':[250,2],'Spectral-Light':[300,3],'Spectral-':[400,5],'Spectral-Medium':[500,6],'Spectral-SemiBold':[600,7],'Spectral-Bold':[700,8],'Spectral-ExtraBold':[800,9]}
+weightname = filename.replace('Regular','').replace('Italic','')
+font['OS/2'].panose.bWeight = wght[weightname][1]
+font['OS/2'].usWeightClass = wght[weightname][0]
+
+outputTTF = makeOutputFileName(inputTTF, '', extension)
+font.save(outputTTF)
diff --git a/sources/generate.sh b/sources/generate.sh
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+fontmake -m spectral-build-roman.designspace -i -o ttf
+fontmake -m spectral-build-italic.designspace -i -o ttf
diff --git a/sources/generate_webfonts.sh b/sources/generate_webfonts.sh
@@ -0,0 +1,4 @@
+for i in *.ttf; do
+    sfnt2woff-zopfli -m ../webfont_metadata.xml $i
+    woff2_compress $i
+done
diff --git a/sources/hinting/spectral-bold.ctrl b/sources/hinting/spectral-bold.ctrl
@@ -0,0 +1,11 @@
+uni0045 touch 19-20 yshift -0.375 @25-30
+uni004C touch 9-10 yshift -0.375 @25-30
+uni005A touch 9-10 yshift -0.375 @25-30
+uni0047 touch 26-29 yshift -0.5 @21-24
+uni0065 touch 25-26 yshift -1.0 @10-11
+uni0065 touch 9-12 yshift -1.0 @10-11
+uni20AC touch 6-9,26-29 yshift 0.25 @11
+uni20AC touch 0-2,33-36,48 yshift -0.25 @11
+uni0035 touch 17-21,26-30 yshift -1.0 @12,14-17
+uni0036 touch 5-8 yshift -1.0 @12
+uni0039 touch 0-2,17 yshift 1.0 @12
diff --git a/sources/hinting/spectral-bolditalic.ctrl b/sources/hinting/spectral-bolditalic.ctrl
@@ -0,0 +1,6 @@
+uni0045 touch 19-20 yshift -0.375 @23-32
+uni0069 touch 0-11 yshift -0.75 @30,33-35,48
+uni20AC touch 0-2,31-34,48 yshift -0.75 @11
+uni0035 touch 15-19,24-29 yshift -1.0 @16-17
+uni0036 touch 5-8 yshift -0.5 @16-17
+uni0039 touch 0-2,19 yshift 0.5 @16-20
diff --git a/sources/hinting/spectral-italic.ctrl b/sources/hinting/spectral-italic.ctrl
@@ -0,0 +1,9 @@
+uni0062 left 6-9
+uni0064 left 11-14
+uni0068 left 3-6
+uni006B left 2-5
+uni006C left 5-8
+uni0069 touch 0-11 yshift -0.75 @25-26,34-35,48
+uni0075 right 10-11,24-25
+uni0036 touch 5-8 yshift -0.5 @17-20
+uni0039 touch 0-2,19 yshift 0.5 @16-21
diff --git a/sources/hinting/spectral-regular.ctrl b/sources/hinting/spectral-regular.ctrl
@@ -0,0 +1,9 @@
+uni0032 touch 29-32 yshift -0.5 @16-18
+uni0069 touch 0-11 yshift 1.0 @21-22,30
+uni0069 touch 0-11 yshift -1.0 @27-29
+uni0041 touch 11-12 yshift 0.375 @21-35
+uni0045 touch 19-20 yshift -0.375 @21-35
+uni004C touch 9-10 yshift -0.375 @21-35
+uni005A touch 9-10 yshift -0.375 @21-35
+uni0036 touch 5-8 yshift -1.0 @17-19
+uni0039 touch 0-2,17 yshift 1.0 @17-19
diff --git a/sources/post_generate_desktop.sh b/sources/post_generate_desktop.sh
@@ -0,0 +1,6 @@
+for i in *.ttf ; do 
+  fontbakery fix-fsselection --usetypometrics $i -e --no-coverage
+done
+for i in *.ttf ; do 
+  fontbakery fix-dsig $i -e --no-coverage
+done
diff --git a/sources/post_generate_sc.sh b/sources/post_generate_sc.sh
@@ -0,0 +1,7 @@
+for i in *.ttf ; do 
+  fam_name="${i:0:8}SC-"
+  style="${i:9:100}"
+  sc_name=$fam_name$style
+  pyftfeatfreeze.py -f 'smcp' -S -U SC $i $sc_name
+  rm $i
+done
diff --git a/sources/post_generate_ttf.sh b/sources/post_generate_ttf.sh
@@ -0,0 +1,17 @@
+for i in *.ttf; do
+    python ../fix_weightcodes.py "$i"
+    echo "Processing $i ..."
+done
+for i in *.ttf ; do mv $i ${i//#1/} ; done
+for i in Spectral-Regular Spectral-Bold Spectral-Italic Spectral-BoldItalic; do
+	ttfautohint -i -n -f latn -m ../hinting/$i.ctrl $i.ttf $i.hinted.ttf
+  echo "Hinting $i ..."
+done
+for i in Spectral-ExtraBold Spectral-ExtraBoldItalic Spectral-ExtraLight Spectral-ExtraLightItalic Spectral-Light Spectral-LightItalic Spectral-Medium Spectral-MediumItalic Spectral-SemiBold Spectral-SemiBoldItalic; do
+	ttfautohint -i -n -f latn $i.ttf $i.hinted.ttf
+  echo "Hinting $i ..."
+done
+for i in *.ttf ; do mv $i ${i//.hinted/} ; done
+for i in *.ttf ; do 
+  fontbakery fix-fstype $i -e --no-coverage
+done
diff --git a/sources/post_generate_web.sh b/sources/post_generate_web.sh
@@ -0,0 +1,3 @@
+for i in *.ttf ; do 
+  fontbakery fix-vertical-metrics $i -e --no-coverage
+done
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		fontmake -m spectral-build-roman.designspace -i -o ttf
		fontmake -m spectral-build-italic.designspace -i -o ttf