Add scripts to thumbnail and compress images

Author: hugovk

scripts/squash-images.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+#https://pngquant.org/
+# On Mac: brew install pngquant
+
+# Options:
+#   --ext .png  Output to same filename, don't append anything else
+#   --force     Overwrite existing output files
+#   --speed 1   Slow speed, best quality
+#   --strip     Remove optional metadata
+
+pngquant --ext .png --force --speed 1 --strip assets/*.png img/*.png

scripts/thumbnail-images.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+# encoding: utf-8
+"""
+Thumbnail images to a maximum of 160px wide and 80px high
+"""
+import glob
+
+from PIL import Image  # pip install pillow
+
+max_size = 160, 80
+
+for infile in glob.glob("assets/*.png"):
+    im = Image.open(infile)
+    im.thumbnail(max_size)
+    im.save(infile)