Total repo size before: 52.4 MB, total repo size after: 49.7 MB (a reduction of 5%). Just the PNG images had a reduction of about 10% (so about half the repo by file size is PNG images).
The exact command used is find . | grep "\.png" | xargs ~/.cargo/bin/oxipng -o6 --strip all --zopfli
Total repo size before: 52.4 MB, total repo size after: 49.7 MB (a reduction of 5%). Just the PNG images had a reduction of about 10% (so about half the repo by file size is PNG images).
The exact command used is
find . | grep "\.png" | xargs ~/.cargo/bin/oxipng -o6 --strip all --zopfli