Commit 5f168cf6 authored by Protesilaos Stavrou's avatar Protesilaos Stavrou

Update web fonts

After careful consideration I have made a couple of decisions:

1. Switch the main font from FiraGO to Clear Sans (more below);
2. Stop providing a bespoke monospaced font, for the sake of
   performance.

I have selected Clear Sans because (the first three are also true for
FiraGO):

1. It is metrically similar to widespread system fonts, like Helvetica,
   Arial, Roboto.  The base font size matters because the width of the
   content area is defined in rem (multiples of the base font size ==
   16px).  As such, a smaller font, say, Alegreya Sans, will fit in much
   more characters on the same line.  Conversely, a typeface with wide
   proportions, like DejaVu Sans, will only fit a few characters per
   line.  I generally try to be within the range of 70-90 characters per
   line.  Working with a reliable point of reference is essential.
2. It has a rather dark typographic colour, as opposed to, say, Open
   Sans.  This makes it good for legibility.  It also means that its
   shapes are not too fancy, which contributes to its functional
   purpose.  In a similar vein, its x-height is neither too tall nor too
   short, making it well-balanced overall.
3. It supports Latin and Greek scripts.
4. Its numerals are aligned on a grid, as you would expect from
   a monospaced font.  This is excellent news because it means that I no
   longer need to provide a bespoke mono font for the parts of my site
   that need tabular alignment (such as index pages where one column
   shows the date of the publication and the other the title).
parent 6dd02f96
......@@ -38,24 +38,12 @@ Hereinafter also referred to as SOURCE.
### Typography
The web fonts are [FiraGO](https://bboxtype.com/typefaces/FiraGO/) and a
patched variant of [Hack](https://sourcefoundry.org/hack/). The former
is distributed under the terms of the SIL Open Font License (OFL), version
1.1. The latter is available under a mixed free font license that
includes the MIT License and the BITSTREAM VERA LICENSE.
The web fonts are part of the [Clear Sans](https://01.org/clear-sans)
typeface by Intel, available under the terms of the Apache 2.0 License.
*FiraGO* is available in regular and bold weights, with corresponding
italics.
*Hack* (internally referred to as "Hack alt") uses the regular weight
without italics. The patches I have made pertain to the substition of
certain glyphs which are offered by the creators of the original
typeface. The patched variant retains the same license as the original.
Both typefaces provide coverage for Latin and Greek glyphs, serving the
needs of this website.
All the source files are included in the `SOURCE/_src/ttf` directory.
All source files are included in the `SOURCE/_src/ttf` directory.
I also use a few Bash scripts to automate the various steps involved in
preparing the web fonts. See `SOURCE/dev`.
### Back end
......
@font-face {
font-family: 'Clear Sans';
font-style: normal;
font-weight: 400;
src: local('Clear Sans Regular'), local('ClearSans-Regular'),
url('/assets/fonts/ClearSans-Regular.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/ClearSans-Regular.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'Clear Sans';
font-style: italic;
font-weight: 400;
src: local('Clear Sans Italic'), local('ClearSans-Italic'),
url('/assets/fonts/ClearSans-Italic.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/ClearSans-Italic.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'Clear Sans';
font-style: normal;
font-weight: 700;
src: local('Clear Sans Bold'), local('ClearSans-Bold'),
url('/assets/fonts/ClearSans-Bold.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/ClearSans-Bold.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'Clear Sans';
font-style: italic;
font-weight: 700;
src: local('Clear Sans Bold Italic'), local('ClearSans-BoldItalic'),
url('/assets/fonts/ClearSans-BoldItalic.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/ClearSans-BoldItalic.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'FiraGO';
font-style: normal;
font-weight: 400;
src: local('FiraGO Regular'), local('FiraGO-Regular'),
url('/assets/fonts/FiraGO-Regular.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/FiraGO-Regular.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'FiraGO';
font-style: italic;
font-weight: 400;
src: local('FiraGO Italic'), local('FiraGO-Italic'),
url('/assets/fonts/FiraGO-Italic.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/FiraGO-Italic.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'FiraGO';
font-style: normal;
font-weight: 700;
src: local('FiraGO Bold'), local('FiraGO-Bold'),
url('/assets/fonts/FiraGO-Bold.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/FiraGO-Bold.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'FiraGO';
font-style: italic;
font-weight: 700;
src: local('FiraGO Bold Italic'), local('FiraGO-BoldItalic'),
url('/assets/fonts/FiraGO-BoldItalic.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/FiraGO-BoldItalic.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
@font-face {
font-family: 'Hack alt';
font-style: normal;
font-weight: 400;
src: local('Hack Regular'), local('Hack-Regular'),
url('/assets/fonts/Hack-Regular.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
url('/assets/fonts/Hack-Regular.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}
//// @font-face {
//// font-family: 'Hack alt';
//// font-style: italic;
//// font-weight: 400;
//// src: local('Hack Italic'), local('Hack-Italic'),
//// url('/assets/fonts/Hack-Italic.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
//// url('/assets/fonts/Hack-Italic.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
//// }
////
//// @font-face {
//// font-family: 'Hack alt';
//// font-style: normal;
//// font-weight: 700;
//// src: local('Hack Bold'), local('Hack-Bold'),
//// url('/assets/fonts/Hack-Bold.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
//// url('/assets/fonts/Hack-Bold.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
//// }
////
//// @font-face {
//// font-family: 'Hack alt';
//// font-style: italic;
//// font-weight: 700;
//// src: local('Hack Bold Italic'), local('Hack-BoldItalic'),
//// url('/assets/fonts/Hack-BoldItalic.subset.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
//// url('/assets/fonts/Hack-BoldItalic.subset.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
//// }
@import 'firago';
@import 'hack';
@import 'clearsans';
This diff is collapsed.
Digitized data copyright 2012-2018 for FiraGO: Carrois Corporate GbR and HERE Europe B.V. All rights reserved.
Digitized data copyright 2012-2018 for Fira Sans up to version 4.3: The Mozilla Foundation, Telefonica S.A., Carrois Corporate GbR and bBox Type GmbH.
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.
MIT License
===========
Copyright (c) 2018 Source Foundry Authors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Hack font with alternative glyphs
=================================
These font files include a patched build of the *Hack* font. The
glyphs I have changed are the following:
- [(](https://github.com/source-foundry/alt-hack/tree/master/glyphs/u0028-curved).
- [)](https://github.com/source-foundry/alt-hack/tree/master/glyphs/u0029-curved).
- [0](https://github.com/source-foundry/alt-hack/tree/master/glyphs/u0030-forwardslash).
- [3](https://github.com/source-foundry/alt-hack/tree/master/glyphs/u0033-flattop).
Resources used:
- The [alt-hack](repository https://github.com/source-foundry/alt-hack).
- The [official build instructions](https://github.com/source-foundry/Hack/blob/master/docs/BUILD.md).
License
-------
This work is licensed under the MIT License, which is taken directly
from the "alt-hack" repository. See the LICENSE.md bundled with this
font set.
@font-face{font-family:'FiraGO';font-style:normal;font-weight:400;src:local("FiraGO Regular"),local("FiraGO-Regular"),url("/assets/fonts/FiraGO-Regular.subset.woff2") format("woff2"),url("/assets/fonts/FiraGO-Regular.subset.woff") format("woff")}@font-face{font-family:'FiraGO';font-style:italic;font-weight:400;src:local("FiraGO Italic"),local("FiraGO-Italic"),url("/assets/fonts/FiraGO-Italic.subset.woff2") format("woff2"),url("/assets/fonts/FiraGO-Italic.subset.woff") format("woff")}@font-face{font-family:'FiraGO';font-style:normal;font-weight:700;src:local("FiraGO Bold"),local("FiraGO-Bold"),url("/assets/fonts/FiraGO-Bold.subset.woff2") format("woff2"),url("/assets/fonts/FiraGO-Bold.subset.woff") format("woff")}@font-face{font-family:'FiraGO';font-style:italic;font-weight:700;src:local("FiraGO Bold Italic"),local("FiraGO-BoldItalic"),url("/assets/fonts/FiraGO-BoldItalic.subset.woff2") format("woff2"),url("/assets/fonts/FiraGO-BoldItalic.subset.woff") format("woff")}@font-face{font-family:'Hack alt';font-style:normal;font-weight:400;src:local("Hack Regular"),local("Hack-Regular"),url("/assets/fonts/Hack-Regular.subset.woff2") format("woff2"),url("/assets/fonts/Hack-Regular.subset.woff") format("woff")}
@font-face{font-family:'Clear Sans';font-style:normal;font-weight:400;src:local("Clear Sans Regular"),local("ClearSans-Regular"),url("/assets/fonts/ClearSans-Regular.subset.woff2") format("woff2"),url("/assets/fonts/ClearSans-Regular.subset.woff") format("woff")}@font-face{font-family:'Clear Sans';font-style:italic;font-weight:400;src:local("Clear Sans Italic"),local("ClearSans-Italic"),url("/assets/fonts/ClearSans-Italic.subset.woff2") format("woff2"),url("/assets/fonts/ClearSans-Italic.subset.woff") format("woff")}@font-face{font-family:'Clear Sans';font-style:normal;font-weight:700;src:local("Clear Sans Bold"),local("ClearSans-Bold"),url("/assets/fonts/ClearSans-Bold.subset.woff2") format("woff2"),url("/assets/fonts/ClearSans-Bold.subset.woff") format("woff")}@font-face{font-family:'Clear Sans';font-style:italic;font-weight:700;src:local("Clear Sans Bold Italic"),local("ClearSans-BoldItalic"),url("/assets/fonts/ClearSans-BoldItalic.subset.woff2") format("woff2"),url("/assets/fonts/ClearSans-BoldItalic.subset.woff") format("woff")}
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