_Support_ all pdf engines by not requiring anything (#60)

* The `helvet` package doesn't work nicely with LuaLaTeX and renamed the `nofirafonts` option to the more meaningful name `customfonts`
    * Requires a major change in the API

* Fixed small error in font size of institute and author

* Support for the big three TeX engines 🎉

* Add Arabic font

* Add `Noto Sans JP`

The key is to simply not require anything.
The final user should be responsible for correctly loading their font settings.
I Will update documentation shortly!

.github/workflows/build_and_release.yml

@@ -31,18 +31,33 @@ jobs:
         uses: actions/checkout@v2
       - name: Install missing packages
         run: |
-          tlmgr update --self && tlmgr install silence appendixnumberbeamer fira fontaxes mwe
-      - name: Build minimal examples
+          tlmgr update --self && tlmgr install silence appendixnumberbeamer fira fontaxes mwe noto csquotes fontspec babel luatexja haranoaji haranoaji-extra
+      - name: Build minimal examples with pdfLaTeX
         working-directory: minimal_examples/
         run: |
-          ln -s ../*.sty ./
-          ln -s ../logos ./
+          ln -sf ../*.sty ./
+          ln -sf ../logos ./
           latexmk -pdf -file-line-error -interaction=nonstopmode *.tex
+      - name: Remove pdfLaTeX results if compilation succeeds
+        working-directory: minimal_examples/
+        run: rm *.pdf
+      - name: Build minimal examples with LuaLaTeX
+        working-directory: minimal_examples/
+        run: |
+          ln -sf ../*.sty ./
+          ln -sf ../logos ./
+          latexmk -lualatex -file-line-error -interaction=nonstopmode *.tex
+      - name: Build multi-language examples with LuaLaTeX
+        working-directory: multi_lang_examples/
+        run: |
+          ln -sf ../*.sty ./
+          ln -sf ../logos ./
+          latexmk -lualatex -file-line-error -interaction=nonstopmode *.tex
       - name: Build compare examples
         working-directory: compare_examples/
         run: |
-          ln -s ../*.sty ./
-          ln -s ../logos ./
+          ln -sf ../*.sty ./
+          ln -sf ../logos ./
           latexmk -pdf -file-line-error -interaction=nonstopmode *example*.tex
       - name: Build demo document
         run: |

.github/workflows/convert_pdf_to_png.fish

@@ -25,6 +25,20 @@ function convert_compare_examples
     montage ./compare_examples/pureminimalistic_example_light.tmp.png ./compare_examples/defaultbeamer_example.tmp.png -geometry +2+2 -tile 2x -background gray ./compare_examples/comparison_light.png
 end
 
+function convert_multi_lang_examples
+    set files (find ./multi_lang_examples -type d -path '*/.git' -prune -o -name '*.lua.pdf' -print)
+
+    for file_ in $files
+        echo "$file_"
+        set convert_target (string replace -r '(.*)\.pdf' '$1-%02d.tmp.png' "$file_")
+        set montage_source (string replace -r '(.*)\.pdf' '$1-*.png' "$file_")
+        set montage_target (string replace -r '(.*)\.pdf' '$1.tmp.png' "$file_")
+        convert -density 300 "$file_" "$convert_target"
+        montage "$montage_source" -geometry +10+10 -tile 1x -background gray -colorspace RGB "$montage_target"
+    end
+    montage ./multi_lang_examples/*.pdf -geometry +2+2 -tile 2x -background gray ./multi_lang_examples/lang_comparison.png
+end
+
 function convert_demo
     convert -density 300 beamertheme-pure-minimalistic-demo.pdf beamertheme-pure-minimalistic-demo-%02d.tmp.png
     montage beamertheme-pure-minimalistic-demo-*.png -geometry +10+10 -tile 4x -background gray beamertheme-pure-minimalistic-demo.png
@@ -35,3 +49,4 @@ apk add --no-cache imagemagick
 convert_demo
 convert_minimal_examples
 convert_compare_examples
+convert_multi_lang_examples

.gitignore

@@ -12,7 +12,7 @@
 *.cb2
 .*.lb
 
-*old.*
+*.old.*
 *.svg
 ## Intermediate documents:
 *.dvi

README.md

@@ -48,12 +48,12 @@ To build the [beamertheme-pure-minimalistic-demo.tex](beamertheme-pure-minimalis
 - [Other great beamer themes](#other-great-beamer-themes)
 
 # Main goals
-- The theme produces no warnings
 - It should be looking *good* in a 4:3 and 16:9 aspect ratio, without the need to change anything.
 - Provides an environment for vertical-spaced items
 - Easy option to either use light- or dark-mode
 - Is designed to be purely minimalistic without any distractions 
 - Easily use own logos
+- Should support different languages without too many changes
 
 # Demo
 A sample document can be seen in the
@@ -194,24 +194,23 @@ the [Focus beamer theme](https://github.com/elauksap/focus-beamertheme).
 ![fira-fonts](https://raw.githubusercontent.com/wiki/kai-tub/latex-beamer-pure-minimalistic/minimal_examples/fira_font.png)
 
 Some dislike the Fira Fonts. As an alternative, this
-theme also integrates the *Helvetica* fonts.
-The Helvetica fonts are a classical font choice for presentations.
+theme also integrates the *Noto* fonts.
 
-To use the Helvetica fonts:
+To use the Noto fonts:
 
 ```latex
-\usetheme[helvetica, darkmode]{pureminimalistic}
+\usetheme[noto, darkmode]{pureminimalistic}
 ```
 
-![helvetica-fonts](https://raw.githubusercontent.com/wiki/kai-tub/latex-beamer-pure-minimalistic/minimal_examples/helvetica_font.png)
+![noto-fonts](https://raw.githubusercontent.com/wiki/kai-tub/latex-beamer-pure-minimalistic/minimal_examples/noto_font.png)
 
-If you prefer the default fonts, disable the Fira Fonts with:
+If you prefer the default fonts _or_ load your own fonts, disable the Fira Fonts with:
 
 ```latex
-\usetheme[nofirafonts, darkmode]{pureminimalistic}
+\usetheme[customfont, darkmode]{pureminimalistic}
 ```
 
-![helvetica-fonts](https://raw.githubusercontent.com/wiki/kai-tub/latex-beamer-pure-minimalistic/minimal_examples/default_font.png)
+![default-fonts](https://raw.githubusercontent.com/wiki/kai-tub/latex-beamer-pure-minimalistic/minimal_examples/default_font.png)
 
 ## Footer options
 

beamerfontthemepureminimalistic.sty

@@ -21,67 +21,75 @@
 
 \ProvidesPackage{beamerfontthemepureminimalistic}[v1.3.0]
 \RequirePackage{ifthen}
+% Adds micro-typographical enhancements 
+% Has no significant impact on presentation slides
+% Adds issues to japanese packages...
+% \RequirePackage{microtype}
 \mode<presentation>
 
-\newboolean{nofirafonts}
-\setboolean{nofirafonts}{false}
-\newboolean{helvetica}
-\setboolean{helvetica}{false}
+\newboolean{customfont}
+\setboolean{customfont}{false}
+\newboolean{noto}
+\setboolean{noto}{false}
 
-\DeclareOptionBeamer{nofirafonts}{\setboolean{nofirafonts}{true}}
-\DeclareOptionBeamer{helvetica}{\setboolean{helvetica}{true}}
+\DeclareOptionBeamer{customfont}{\setboolean{customfont}{true}}
+\DeclareOptionBeamer{noto}{\setboolean{noto}{true}}
 \ProcessOptionsBeamer
 
 \RequirePackage{silence}
 % I have no clue how I can fix this warning
 \WarningFilter{latex}{Font shape declaration has incorrect series value}
-% TODO: #52 Maybe use different font for math mode; Doesn't look clean
-\ifthenelse{\boolean{helvetica}}{%
-    % If Helvetica overwrites the fira fonts settings
-    \RequirePackage[T1]{fontenc}
-    \RequirePackage[scaled]{helvet}
+\RequirePackage{iftex}
+
+\ifpdftex
+  \RequirePackage[T1]{fontenc}
+\fi
+
+\ifthenelse{\boolean{noto}}{%
+    % If Noto overwrites the fira fonts settings
+    \RequirePackage{noto}
 }{%
-    \ifthenelse{\boolean{nofirafonts}}{%
+    \ifthenelse{\boolean{customfont}}{%
         % Load default fonts
     }{%
         % By default load Fira
-        \RequirePackage[T1]{fontenc}
         \RequirePackage[sfdefault]{FiraSans}
         \RequirePackage{FiraMono}
     }
 }
 
-\renewcommand\normalsize{\fontsize{12pt}{14pt}\selectfont}
+\renewcommand\footnotesize{\fontsize{8pt}{10pt}\selectfont}
 \renewcommand\small{\fontsize{10pt}{12pt}\selectfont}
+\renewcommand\normalsize{\fontsize{12pt}{14pt}\selectfont}
 \renewcommand\large{\fontsize{14pt}{16pt}\selectfont}
 \renewcommand\Large{\fontsize{16pt}{18pt}\selectfont}
 
-\setbeamerfont{normal text}{family=\sffamily,size=\normalsize,series=\mdseries}
+\setbeamerfont{normal text}{family=\sffamily, size=\normalsize, series=\mdseries}
 \setbeamerfont{alerted text}{parent=normal text}
 
-\setbeamerfont{structure}{parent=normal text,series=\mdseries}
+\setbeamerfont{structure}{parent=normal text}
 
-\setbeamerfont{footline}{parent=structure,size*={8pt}{10pt}}
+\setbeamerfont{all titles}{parent=normal text}
+\setbeamerfont{presentation title}{parent=all titles, size=\large, shape=\scshape}
+\setbeamerfont{subtitle}{parent=all titles, shape=\upshape}
+\setbeamerfont{frametitle}{parent=all titles, size=\Large}
 
-\setbeamerfont{title}{size*={14pt}{16pt},parent=alerted text,shape=\scshape}
-\setbeamerfont{title in head/foot}{parent=footline,series=\bfseries}
-
-\setbeamerfont{subtitle}{parent=title,shape=\upshape}
+\setbeamerfont{footline}{parent=structure,size=\footnotesize}
+\setbeamerfont{title in head/foot}{parent=footline, series=\bfseries}
+\setbeamerfont{author in head/foot}{parent=footline}
 
 \setbeamerfont{section in toc}{parent=normal text}
 \setbeamerfont{subsection in toc}{parent=section in toc}
 \setbeamerfont{subsubsection in toc}{parent=subsection in toc}
 
-\setbeamerfont{author}{parent=normal text}
-\setbeamerfont{author in head/foot}{parent=footline}
-\setbeamerfont*{institute}{parent=normal text}
+\setbeamerfont{author}{parent=normal text, size=\small}
+\setbeamerfont{institute}{parent=normal text, size=\small}
 
-\setbeamerfont{frametitle}{parent=alerted text,size*={16pt}{18pt}}
-\setbeamerfont{caption}{series=\normalfont, size=\small}
-\setbeamerfont{caption name}{series=\normalfont, size=\small}
+\setbeamerfont{caption}{parent=normal text, size=\small}
+\setbeamerfont{caption name}{series=normal text, size=\small}
 
-\setbeamerfont*{itemize/enumerate body}{parent=normal text}
-\setbeamerfont*{itemize/enumerate subbody}{parent=itemize/enumerate body}
-\setbeamerfont*{itemize/enumerate subsubbody}{parent=itemize/enumerate subbody}
+\setbeamerfont{itemize/enumerate body}{parent=normal text}
+\setbeamerfont{itemize/enumerate subbody}{parent=itemize/enumerate body}
+\setbeamerfont{itemize/enumerate subsubbody}{parent=itemize/enumerate subbody}
 
 \mode<all>

beamerinnerthemepureminimalistic.sty

@@ -96,7 +96,7 @@
 
       \begin{beamercolorbox}[wd=\textwidth,dp=1ex]{author}%
         \vskip 3pt
-        \small\usebeamerfont{author}\usebeamercolor{author}\insertauthor $\quad$
+        \usebeamerfont{author}\usebeamercolor{author}\insertauthor $\quad$
         \ifx\insertinstitute\@empty%
           \else%
           {\usebeamerfont{institute}\insertinstitute $\quad$}%