Change logo font and improve rendering workflow

docs/scripts/logo.R

@@ -1,17 +1,14 @@
-sysfonts::font_add_google("Zilla Slab", "pf", regular.wt = 500)
-
 hexSticker::sticker(
   subplot = ~ plot.new(),
   s_x = 1,
   s_y = 1,
   s_width = 0.1,
   s_height = 0.1,
-  package = "tinytopics",
+  package = "",
   p_x = 1,
   p_y = 1,
   p_size = 26,
   h_size = 1.2,
-  p_family = "pf",
   p_color = "#3F8CCC",
   h_fill = "#FFF9F2",
   h_color = "#3F8CCC",

docs/scripts/logo.sh

@@ -1,11 +1,53 @@
 #!/bin/bash
 
-# Generate logo
+# Generate logo background
 Rscript docs/scripts/logo.R
 if [ -f "Rplots.pdf" ]; then
     rm Rplots.pdf
 fi
 
+# Generate text image and compose with background due to
+# limited ligatures support in hexSticker and ImageMagick.
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    CHROME_BIN="/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"
+elif [[ "$OSTYPE" == "msys" || "$OSTYPE" == "cygwin" ]]; then
+    CHROME_BIN="/c/Program Files/Google/Chrome/Application/chrome.exe"
+else
+    CHROME_BIN="/usr/bin/google-chrome"
+fi
+
+if [ ! -f "$CHROME_BIN" ]; then
+    echo "Chrome/Chromium not found at $CHROME_BIN"
+    exit 1
+fi
+
+alias chrome="\"$CHROME_BIN\""
+
+chrome --headless \
+    --disable-gpu \
+    --no-margins \
+    --no-pdf-header-footer \
+    --print-to-pdf-no-header \
+    --print-to-pdf=docs/scripts/logo-text.pdf \
+    docs/scripts/logo-text.svg
+
+pdfcrop --quiet \
+    docs/scripts/logo-text.pdf docs/scripts/logo-text.pdf
+
+magick -density 2000 docs/scripts/logo-text.pdf \
+    -resize 25% \
+    -alpha set -background none -channel A \
+    -evaluate multiply 1.3 +channel \
+    -transparent white \
+    docs/scripts/logo-text.png
+
+magick docs/assets/logo.png docs/scripts/logo-text.png \
+    -gravity center \
+    -geometry +5-0 \
+    -composite docs/assets/logo.png
+
+rm docs/scripts/logo-text.pdf docs/scripts/logo-text.png
+
 # Optimize PNG
 pngquant docs/assets/logo.png \
     --force \