My Github Pages jekyll site.
Front matter color reference
bundle exec jekyll serve
To resize all to 700px wide:
# Convert to 700px wide
convert '*.jpg' -set filename:fn '%[basename]-small' -geometry 700x '%[filename:fn].jpg'
To create a cover.jpg:
# Resize to correct dimensions
convert ./cover.jpg -geometry 393x resized.jpg
# Crop to top
convert ./resized.jpg -crop 393x393+0+0 cropped.jpg