Resize for i in *.png; do convert "$i" -resize 1024x ; done; Make icons for Browser Extemsion out of svg's echo "Making icons..." \ && for i in 16 32 48 128 256 512; do \ src=favicon-x1.svg; \ [ $${i} -ge 256 ] && src=favicon-x2.svg; \ inkscape \ -w $${i} -h $${i} \ --export-type=png --export-filename=favicon-$${i}.png --export-dpi=200 \ --export-background-opacity=0 $$src; \ done \ && magick favicon-*.png -background white -alpha remove favicon.ico \ && echo "done" favicon-*.png - separate icons for different sizes favicon.ico - default_icon