Pillow should not be used with oxipng

QUICKSTART.md

@@ -6,7 +6,6 @@ macOS machine with homebrew and Python 3.7+ installed, assumed:
 
 ```
 bash -c "pip3 install afdko fonttools[repacker]"
-pip3 install --upgrade Pillow
 brew install pngquant freetype imagemagick librsvg inkscape php
 ```
 

README.md

@@ -7,7 +7,6 @@ Python and shell scripts to backport and theme [Apple Color Emoji font](https://
 - [Python 3.7 or later](http://www.python.org/download/)
 - [pip](https://pip.pypa.io/en/stable/)
 - [fonttools](https://github.com/fonttools/fonttools) (`pip3 install fonttools[repacker]`)
-- [Pillow](https://pillow.readthedocs.io/en/stable/) (`pip3 install --upgrade Pillow`)
 - [afdko](https://github.com/adobe-type-tools/afdko) (`pip3 install afdko`)
 - [pngquant](https://pngquant.org) (`brew install pngquant`)
 - [oxipng](https://github.com/shssoichiro/oxipng) (`brew install oxipng`)

resize.sh

@@ -34,6 +34,5 @@ else
 fi
 wait
 
-# echo "Optimizing PNGs using zopflipng (slow)..."
-# zopflipng --prefix $NAME/images/*/*.png &> /dev/null
-# rename -f 's/(zopfli_)(.*)\.png/$2\.png/' $NAME/images/*/*.png
+echo "Optimizing PNGs using oxipng..."
+oxipng -q $NAME/images/*/*.png

shared.py

@@ -1,6 +1,4 @@
-from io import BytesIO
 from fontTools import ttLib
-from PIL import Image as PImage
 
 debug = False
 global convert_skin
@@ -247,12 +245,8 @@ def base_norm_special(name: str, with_variant_selector = False):
     return name
 
 def get_image_data(path: str):
-    with PImage.open(path) as fin:
-        stream = BytesIO()
-        fin.save(stream, format='png')
-        data = stream.getvalue()
-        del stream
-    return data
+    with open(path, 'rb') as fin:
+        return fin.read()
 
 def prepare_strikes(f: ttLib.TTFont):
     if 160 in f['sbix'].strikes: