newtx 1.00 (3jul12)

git-svn-id: svn://tug.org/texlive/trunk@27033 c570f23f-e606-0410-a88d-b1316a301751

5 files changed, 99 insertions, 30 deletions

diff --git a/Master/texmf-dist/doc/fonts/newtx/README b/Master/texmf-dist/doc/fonts/newtx/README
index 64ddde167f7..0f3fba3212b 100644
--- a/Master/texmf-dist/doc/fonts/newtx/README
+++ b/Master/texmf-dist/doc/fonts/newtx/README
@@ -1,9 +1,30 @@
 This package, based on txfonts, provides many fixes and enhancements to the txfonts package, splitting it into two separate packages---newtxtext and newtxmath, which may be run independently of one another. It provides scaling, improved metrics, and other options. In particular, newtxmath offers a libertine option which substitutes Linux Libertine (provided with TeXLive and MikTeX) italic and Greek letters for the default Times letters, providing a good match for the Libertine text font, which is heavier than Computer Modern but lighter than Times, and in my experience, looks very sharp and clear on the screen.
 
-Current version: 0.95
+Current version: 1.00
 
 This material is subject to the LaTeX Project Public License. See http://www.ctan.org/tex-archive/help/Catalogue/licenses.lppl.html for the details of that license.
 
+Changes in version 1.00:
+1. Added option minion to newtxmath, allowing those possessing a recent basic version of MinionPro to use its Latin and Greek letters to replace the corresponding letters in math mode. (Version 2 or later of MinionPro-Regular.otf, MinionPro-Bold.otf, MinionPro-It.otf and MinionPro-BoldIt.otf required.) Using this option requires installation of the package minion2newtx.
+2. Corrected issue with height of accents in bold versions.
+3. Added a fix, perhaps temporary, for bad Libertine Italic Theta in fxlri.pfb.
+4. Revised ntx.map---needs to be enabled if never previously enabled, or rerun updmap[-sys] to register changes.
+
+Changes in version 0.99
+1. Main change is to correct faulty Libertine 5 and 7 pt math fonts distributed with version 0.98.
+2. More corrections to sty file and to metrics.
+
+Changes in version 0.98:
+1. Many metric changes in bold and regular weights of Libertine Greek glyphs used in newtxmath.
+2. Reworked the cmintegrals option to newtxmath and fixed the alphabets loaded by the bold Libertine version.
+3. The updated newtxmath seems to be compatible with the recent XeLaTeX and LuaLaTeX.
+
+Changes in version 0.97:
+Many metric refinements to the libertine option in newtxmath. The bold math version now works much better though the math accents in bold are somewhat problematic (closer than desirable to the glyphs) because Libertine declares its x-height in semibold and bold to be considerably greater than the actual x-heights, presumably for the benefit of characters that are accented by traditional (OT1) means. The effect is that math accents are lowered substantially. The only option for the math version may be to construct a virtual font without the raised x-height---Ugh.
+
+Changes in version 0.96:
+Adds the 40 font support files (.tfm, .vf, .fd) that implement the osf option in newtxtext.sty.
+
 Changes in version 0.95:
 1. Copied (virtually) a number of useful glyphs from {\tt symbolsC} to {\tt lettersA} in an effort to reduce the number of mathgroups, which comes perilously close to exceeding 16.
 2. Added option nosymbolsc to newtxmath that allows you to not load symbolsC, gaining a mathgroup.
@@ -77,7 +98,7 @@ initexmf --mkmaps
 
 You can ignore error messages that may occur here. This should result in a properly enabled ntx.
 
-Please understand that this is a still a preliminary version, and I have undoubtedly made errors. The underlying glyphs from txfonts are good, and I believe I've improved the metrics and the package substantially. 
+The underlying glyphs from txfonts are good, and I believe I've improved the metrics and the package substantially. 
 
 Please send comments and bug reports or suggestions for improvement to
 
diff --git a/Master/texmf-dist/doc/fonts/newtx/implementation.pdf b/Master/texmf-dist/doc/fonts/newtx/implementation.pdf
index fb1087a5a67..91a47aadbdc 100644
--- a/Master/texmf-dist/doc/fonts/newtx/implementation.pdf
+++ b/Master/texmf-dist/doc/fonts/newtx/implementation.pdf
diff --git a/Master/texmf-dist/doc/fonts/newtx/implementation.tex b/Master/texmf-dist/doc/fonts/newtx/implementation.tex
index 2278c6d1204..05afff8b2a3 100644
--- a/Master/texmf-dist/doc/fonts/newtx/implementation.tex
+++ b/Master/texmf-dist/doc/fonts/newtx/implementation.tex
@@ -38,7 +38,21 @@ we force the slots in {\tt rtxmi} to be interpreted using the names in {\tt oml.
 
 The original version of \textsf{txfonts} made use of whatever Times font was installed in \TeX\ Live, and as a non-free font, it was not available for modification. In this updated version, we use instead the alphabetic glyphs from  TeXGyreTermes or LinLibertine, each of which presents no licensing issues. This allows us to make optical sizes of the math italic and symbol fonts, with a  boost to the appearance and readability of subscripts, sub-subscripts and superscripts. (Unfortunately the STIX math italic letters are much heavier than Times, by nearly 15\% in stem thickness of uppercase letters, and do not make a good substitute.)  
 \section{Converting Libertine}
-Making Libertine text italic and Greek glyphs into math italic and Greek glyphs requires some preparation. The regular 10{\tt pt} size is no problem---there is a tfm in the \TeX Live ditribution named {\tt fxlri-8r.tfm} which provides the font in {\tt 8r} encoding, which of course includes all the Roman letters. To get an equivalent for 7{\tt pt} and 5{\tt pt} requires us to open the original {\tt fxlri.{pfb,afm}} in FontForge and subject them to the two stages of thickening and extending described above. The result should be 
+Making Libertine text italic and Greek glyphs into math italic and Greek glyphs requires some preparation. In a number of cases, we want to substitute (virtually) Greek glyphs from Libertine into a math italic (or mia) font. As the Greek glyphs are not encoded, we proceed as follows:
+\begin{verbatim}
+afm2tfm fxlri -T libertinealt.enc -v fxlri-alt rfxlri-alt
+\end{verbatim}
+which creates {\tt rfxlri-alt.tfm} and {\tt fxlri-alt.vpl} containing the Greek glyphs in the order they should be for \TeX, and which outputs, for the map file, the line
+\begin{verbatim}
+rfxlri-alt LinLibertineI " LibertineAltEncoding ReEncodeFont " <libertinealt.enc
+\end{verbatim}
+and then
+\begin{verbatim}
+tftopl rfxlri-alt rfxlri-alt
+\end{verbatim}
+makes {\tt rfxlri-alt.pl}, from which \textsf{fontinst} may construct {\tt rfxlri-alt.mtx}. The other {\tt -alt} versions were constructed in a similar manner.
+
+There is a tfm in the \TeX Live distribution named {\tt fxlri-8r.tfm} which provides the {\tt fxlri} in {\tt 8r} encoding, which of course includes all the Roman letters. To get an equivalent for 7{\tt pt} and 5{\tt pt} requires us to open the original {\tt fxlri.{pfb,afm}} in FontForge and subject them to the two stages of thickening and extending described above. The result should be 
 \begin{verbatim}
 fxlri-7letters.{pfb,afm}
 fxlri-5letters.{pfb,afm}
@@ -49,15 +63,15 @@ from which we produce four corresponding tfm files using, eg,
 \begin{verbatim}
 afm2tfm fxlri-7letters
 \end{verbatim}
-which must be referenced in the {\tt libertinealt.map} file with four lines like
+which must be referenced in the {\tt ntx.map} file with four lines like
 \begin{verbatim}
 fxlri-7letters LinLibertineI7 <fxlri-7letters.pfb
 \end{verbatim}
 The same fonts are now used with a different encoding to tease out Greek letters and some other unencoded glyphs like alternate versions of J, g, v and y. Note that these are not available in the semibold font---we have to resort to other tricks for that. First, run four commands similar to
 \begin{verbatim}
-afm2tfm fxlri-7letters -T libertinealt.enc -v fxlri-7alt fxlri-7alt
+afm2tfm fxlri-7letters -T libertinealt.enc -v fxlri-7alt
 \end{verbatim}
-
+which produces {\tt fxlri-7alt.tfm} (must be referenced in the map file) and {\tt fxlri-7alt.vpl} which will be used only in the creation of the virtual font {\tt nxlmi7.{tfm,vf} by \textsf{fontinst}. 
 \subsection{Making bold J and bold v}
 These glyphs are missing in \textsf{fxlzi.pfb}, the semibold Linux Libertine that matched bold TX better than bold Linux Libertine, which seems to be a quite different font, more like bold Palatino. So, we take the Jcircumflex glyph and remove the circumflex to make a J and take the v.alt glyph from \textsf{fxlri} and embolden it by 40{\tt em} to make a bold version of the math italic v. From this next font \textsf{fxlzi-jv.pfb} with just two glyphs, we make a tfm with
 \begin{verbatim}
@@ -76,22 +90,9 @@ and then, for each {\tt.tfm}, make a {\tt .pl} with
 tftopl fxlzi-jv fxlzi-jv
 \end{verbatim}
 and so on. 
-\subsection{Making -alt fonts} In a number of cases, we want to substitute (virtually) Greek glyphs from Libertine into a math italic (or mia) font. As the Greek glyphs are not encoded, we proceed as follows:
-\begin{verbatim}
-afm2tfm fxlri -T libertinealt.enc -v fxlri-alt rfxlri-alt
-\end{verbatim}
-which creates {\tt rfxlri-alt.tfm} and {\tt fxlri-alt.vpl} containing the Greek glyphs in the order they should be for \TeX, and which outputs, for the map file, the line
-\begin{verbatim}
-rfxlri-alt LinLibertineI " LibertineAltEncoding ReEncodeFont " <libertinealt.enc
-\end{verbatim}
-and then
-\begin{verbatim}
-tftopl rfxlri-alt rfxlri-alt
-\end{verbatim}
-makes {\tt rfxlri-alt.pl}, from which \textsf{fontinst} may construct {\tt rfxlri-alt.mtx}. The other {\tt -alt} versions were constructed in a similar manner.
 
 \section{Files in the distribution}
-This list is current as of May 31, 2012. The following abbreviations are used in the remarks:\\
+This list is current as of June 13, 2012. The following abbreviations are used in the remarks:\\
 \textbf{FF} means FontForge;\\
 \textbf{EW} means ``thicken vertical stems by 8\% and extend width by a further 7\% using FontForge'';\\
 \textbf{EW}${}^2$ means ``perform EW twice''.
@@ -257,6 +258,42 @@ This list is current as of May 31, 2012. The following abbreviations are used in
 1160&May&18&15:52&txbsy7.tfm& from txbsy7.pfb\\
 1172&May&18&16:03&txsy5.tfm& from txsy5.pfb\\
 1156&May&18&15:52&txsy7.tfm& from txsy7.pfb\\
+6812&Apr&22&15:16&t1xbij.tfm& items below (suffix j) from tx with osf\\
+2152&Apr&22&15:16&t1xbij.vf\\
+6892&Apr&22&15:18&t1xbj.tfm\\
+2176&Apr&22&15:18&t1xbj.vf\\
+7136&Apr&22&15:13&t1xbslj.tfm\\
+2184&Apr&22&15:13&t1xbslj.vf\\
+6956&Apr&22&15:17&t1xij.tfm\\
+2148&Apr&22&15:17&t1xij.vf\\
+6716&Apr&22&13:56&t1xrj.tfm\\
+2168&Apr&22&13:56&t1xrj.vf\\
+6928&Apr&22&15:14&t1xslj.tfm\\
+2184&Apr&22&15:14&t1xslj.vf\\
+2524&Apr&22&15:16&txbij.tfm\\
+936&Apr&22&15:16&txbij.vf\\
+2452&Apr&22&15:18&txbj.tfm\\
+932&Apr&22&15:18&txbj.vf\\
+2680&Apr&22&15:14&txbslj.tfm\\
+940&Apr&22&15:14&txbslj.vf\\
+2584&Apr&22&15:17&txij.tfm\\
+936&Apr&22&15:17&txij.vf\\
+2408&Apr&22&13:55&txrj.tfm\\
+932&Apr&22&13:55&txrj.vf\\
+2636&Apr&22&15:14&txslj.tfm\\
+936&Apr&22&15:14&txslj.vf\\
+4428&Apr&22&15:16&tyxbij.tfm\\
+1744&Apr&22&15:16&tyxbij.vf\\
+4520&Apr&22&15:18&tyxbj.tfm\\
+1740&Apr&22&15:18&tyxbj.vf\\
+4724&Apr&22&15:13&tyxbslj.tfm\\
+1748&Apr&22&15:13&tyxbslj.vf\\
+4424&Apr&22&15:17&tyxij.tfm\\
+744&Apr&22&15:17&tyxij.vf\\
+4332&Apr&22&13:56&tyxrj.tfm\\
+11740&Apr&22&13:56&tyxrj.vf\\
+4536&Apr&22&15:15&tyxslj.tfm\\
+1744&Apr&22&15:15&tyxslj.vf\\
     \bottomrule
   \end{longtable}
 \end{center}
@@ -295,6 +332,10 @@ This list is current as of May 31, 2012. The following abbreviations are used in
 558&Apr&30&17:30&untxsyb.fd& font definitions for newtxmath AMSb\\
 558&Apr&30&17:30&untxsyc.fd& font definitions for newtxmath symbolsC\\
 1460&Apr&30&17:30&untxtt.fd& font definitions for newtx typewriter\\
+1421&Apr&22&15:36&ly1ntxrj.fd& font definitions for LY1 newtx, osf\\
+1432&Apr&22&15:37&ot1ntxrj.fd& font definitions for OT1 newtx, osf\\
+1404&Apr&22&15:35&t1ntxrj.fd& font definitions for T1 newtx, osf\\
+1487&Apr&22&12:57&ts1ntxrj.fd& font definitions for TS1 newtx, osf\\
     \bottomrule
   \end{longtable}
 \end{center}
diff --git a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf
index 00fa8bbeb5b..f02222e1186 100644
--- a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf
+++ b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf
diff --git a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
index a3119edf039..405b8643987 100644
--- a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
+++ b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
@@ -2,6 +2,7 @@
 \usepackage[margin=1in]{geometry} 
 \usepackage[parfill]{parskip}% Begin paragraphs with an empty line rather than an indent
 \usepackage{graphicx}
+\usepackage{url}
 %SetFonts
 % libertine text and newtxmath
 \usepackage{libertine}
@@ -22,17 +23,16 @@
 \begin{document}
 \maketitle
 \section{Introduction}
-The {\tt txfonts} package by Young Ryu has been available for over ten years but has been corrected very little since its introduction. It is meant to be a complete text and math package with roman text font provided by Times or a Times clone, sans serif based on a \textsf{Helvetica} clone, typewriter faces, plus math symbol fonts whose math italic letters are from a Times Italic clone. The additional glyphs, whether taken from free sources or designed by him, are generally of high quality, but the accompanying metrics are not, making the math inconsistently spaced, but so cramped that neighboring symbols  collide not infrequently.
+The {\tt txfonts} package by Young Ryu has been available for over ten years but has been corrected very little since its introduction. It is meant to be a complete text and math package with roman text font provided by Times or a Times clone, sans serif based on a \textsf{Helvetica} clone, typewriter faces, plus math symbol fonts whose math italic letters are from a Times Italic clone. The additional glyphs, whether taken from free sources or designed by him, are generally of high quality, but the accompanying metrics are not, making the math inconsistently spaced, but at times so cramped that neighboring symbols  collide.
 
-The goal of this new project is use his glyphs along with a few additions and with completely reworked metrics which are generally looser, but not as loose as Computer Modern math, to make a math package that works with not only Times, but also with fonts that are intermediate in weight between Computer Modern and Times. The free font Linux Libertine is one particular target, as it is of nearly the same x-height as Computer Modern, but, not being a \emph{modern} font, it does not have a high contrast ratio, and so appears  denser than Computer Modern but not as much so as Times. It is meant as a replacement for Times, but  differs from it in many characteristics, more similar to MinionPro than Times, and provides a better range of variants than Times---three weights (regular, semi-bold and bold) rather than just two, and has expert features in all weights: old-style figures, more extensive and more interesting ligatures,  and  small caps. In my opinion, material typeset in Linux Libertine looks better than the corresponding material typeset in Times. This seems especially true on the screen.
+The goal of this new project is use his glyphs along with a few additions and with completely reworked metrics which are generally looser, but not as loose as Computer Modern math, to make a math package that works with not only Times, but also with fonts that are intermediate in weight between Computer Modern and Times. The free font Linux Libertine is one particular target---it is of nearly the same x-height as Computer Modern, but, not being a \emph{modern} font, does not have a high contrast ratio, and so appears  denser than Computer Modern but not as much so as Times. It is meant as a replacement for Times, but  differs from it in many characteristics, more similar to MinionPro than Times, and provides a better range of variants than Times---three weights (regular, semi-bold and bold) rather than just two, and has expert features in all weights: old-style figures, more extensive and more interesting ligatures,  and  small caps. In my opinion, material typeset in Linux Libertine looks better than the corresponding material typeset in Times. This seems especially true on the screen. As of version 1.0, the package also offers support for MinionPro as a math font, but with limitations described in detail below.
 
-As a rough measure of weight in math mode, the default line width in Computer Modern math is 40{\tt em}, in MathTime Pro 2, it is 46{\tt em}, and in txfonts, the value is 56{\tt em}. (The Times default line width as estimated from the thickness of each line segment is its = sign is 65{\tt em}. Unlike \textsf{txfonts}, Mathtime Pro 2 geometric glyphs are not of uniform thickness, so a comparison based on just this number is somewhat misleading.)
 
-The new version makes the following changes:
+This new package differs from {\tt txfonts} in the following ways:
 \begin{itemize}
 \item
 the new package is split into separate text and math packages that do not need to be used in conjunction;
-\item both text and math packages offer options not present in the original package, described below, including the option to use \textsf{libertine} Latin and Greek letters to replace \textsf{Times};
+\item both text and math packages offer options not present in the original package, described below, including the option to use \textsf{libertine} Latin and Greek letters to replace \textsf{Times}, as well as a similar option \textsf{minion};
 \item wide accent glyphs have been corrected (they should have zero depth) so that they no longer collide with the underlying glyph;
 \item for those who do not like the integral in \textsf{txfonts}, an emboldened version of the Computer Modern integral is made available, matching the weight of the \textsf{txfonts} symbols;
 \item an upright partial derivative symbol has been added, named \verb|\uppartial|;
@@ -62,7 +62,8 @@ loads the math part of the {\tt txfonts} (with revised metrics and additional gl
 \begin{itemize}
 \item {\tt varg} causes the math italic letters \verb|g,v,w,y| to be replaced by versions which are more distinctive---eg, useful for distinguishing math italic \verb|v| from \verb|\nu|;
 \item {\tt libertine} loads different versions of math italic and bold math italic based on \textsf{Libertine} rather than \textsf{Times}---the {\tt varg} option is disabled in this case, as the equivalent variant forms are made available by default;
-\item the {\tt libertine} option also replaces both slanted and upright Greek  symbols by the corresponding Libertine glyphs;
+\item {\tt minion} loads different versions of math italic and bold math italic based on \textsf{MinionPro} rather than \textsf{Times}---the {\tt varg} option is disabled in this case, as the equivalent variant forms are made available by default---see the extended discussion below;
+\item the {\tt libertine} option also replaces both slanted and upright Greek  symbols by the corresponding Libertine glyphs, and similarly for {\tt minion};
 \item
 {\tt cmintegrals} instructs \textsf{newtxmath} to load a thicker version of the Computer Modern integral in place of the \textsf{newtxmath} default---the txfonts integral (identical to the integral in the Wolfram fonts), which is not to everyone's taste---a consequence is that none of the special forms of \textsf{txfonts} integrals are available;
 \item the combination
@@ -99,7 +100,7 @@ allows you to use the forms \verb|\iint|, \verb|\iiint|, \verb|\iiiint| and \ver
 \renewcommand{\bfdefault}{z} % libertine package uses z, not sb, for semibold
 \usepackage[scaled=.85]{beramono}% a typewriter font must be defined
 \usepackage{amsmath,amsthm}
-\usepackage[libertine,cmintegrals,cmbraces]{newtxmath}
+\usepackage[libertine,cmintegrals,cmbraces,vvmathbb]{newtxmath}
 \usepackage[scr=rsfso]{mathalfa}
 \usepackage{bm}% load after all math to give access to bold math
 \renewcommand*{\rmdefault}{fxlj} %old-style figures in text, not math
@@ -107,9 +108,15 @@ allows you to use the forms \verb|\iint|, \verb|\iiint|, \verb|\iiiint| and \ver
 \end{verbatim}
 
 \textbf{Caution:} In encodings {\tt T1} and {\tt LY1}, the macro \verb|\mathrm| does not produce what you might expect for Greek letters, due to the difference between those encodings and {\tt OT1}. But what were you expecting with \verb|\mathrm{Gamma}| anyway? In {\tt T1} and {\tt LY1}, you'll get a math accent.
+\section{The {\tt minion} option}
+This option allows the use of MinionPro as math letters (Latin and Greek) within  the math font, but there are some caveats:
+\begin{itemize}
+\item
+you must use a recent version of MinionPro, such as the version that comes with recent versions of Adobe Reader. In addition, the fonts must installed under special names so they can be recognized by the support files---this is spelled out in the documentation for the minion2newtx package that must be downloaded from \url{CTAN.tug.org} and installed separately.
+\end{itemize}
 
 \section{The \TeX\ math font problem}
-Math font packages in \LaTeX\ are likely to face the ``Too many math alphabets'' message, due to exceeding the limit of just sixteen math font families, or mathgroups, as they are called in \LaTeX. Put in oversimplified terms that do however correctly represent how this all works in \textsf{newtxmath}, the following math fonts are always loaded and permanently occupying slots immediately following \verb|\begin{document}|, and others that may be called for in typesetting a mathematical expression can add to the list as the document grows.
+Math font packages in \LaTeX\ are susceptible to the ``Too many math alphabets'' error, due to exceeding the limit of just sixteen math font families, or mathgroups, as they are called in \LaTeX. Put in oversimplified terms that do however correctly represent how this all works in \textsf{newtxmath}, the following math fonts are always loaded and permanently (if you didn't prevent loading of some features) occupying slots immediately following \verb|\begin{document}|, and others that may be called for in typesetting a mathematical expression can add to the list as the document grows.
 
 \textsc{Always loaded:}
 \begin{verbatim}
@@ -130,7 +137,7 @@ Math font packages in \LaTeX\ are likely to face the ``Too many math alphabets''
 \textsc{Notes:}
 \begin{itemize}
 \item
-The {\tt operators} is essentially the Roman text font, used for names of operators and as the target for \verb|\mathrm|---its bold version is used as the target for \verb|\mathbf|;
+The {\tt operators} font is essentially the Roman text font, used for names of operators and as the target for \verb|\mathrm|---its bold version is used as the target for \verb|\mathbf|;
 \item if you typeset an expression that, say, calls for a single bold glyph from  {\tt symbolsC}, that costs you an entire new slot, leaving only two remaining;
 \item same with, eg, \verb|\mathit|;
 \item same with an external Fraktur, Blackboard Bold or Script glyphs;
@@ -324,7 +331,7 @@ Good match between text and math size and weight, though the summation symbol (f
 % <[libertinealt.enc <fxlbi.pfb
 %\end{verbatim}
 The font files {\tt ntxexmods.pfb} and {\tt ntxbexmods.pfb} were derived from {\tt cmex10.pfb} by FontForgery, thickening the Computer Modern braces to match the weight of the \textsf{txfonts} braces. The pair {\tt ntxexb.pfb} and {\tt ntxbexb.pfb} were similarly derived from {\tt cmsy7.pfb} and {\tt cmex10.pfb} to produce more braces and matching integral signs based on Computer Modern. The {\tt.tfm} files {\tt rtx[b]mio.tfm} are simply unslanted versions of {\tt rtxmi}, from which we construct upright partial derivative symbols.
-The last two entries provide us with a way to access custom-encoded versions of {\tt fxlri.pfb} and {\tt fxlbi.map} in order to access to some of the unencoded alternate characters---eg, Greek letters, {\tt J.alt} and {\tt v.alt}. 
+The last two entries provide us with a way to access custom-encoded versions of {\tt fxlri.pfb} and {\tt fxlbi.map} in order to access some of the unencoded alternate characters---eg, Greek letters, {\tt J.alt} and {\tt v.alt}. The font file \textsf{LibertineTheta-Regular.pfb} was created from the Theta symbol in {\tt fxlri.pfb}, which requires some FontForge help to look correct.
 
 This version contains optical versions of the math italic and symbol fonts at 7\texttt{pt} and 5\texttt{pt}, allowing better rendering in \verb|\scriptstyle| and \verb|\scriptscriptstyle|.