--- /dev/null
+## ALSO SEE https://www.ej-technologies.com/resources/install4j/help/doc/#install4j.concepts.dmgStyling
+
+cp ../../build/install4j/11/Jalview-OFFLINE_macos-app_DEVELOPMENT-j11.dmg ./temp.dmg
+
+hdiutil convert temp.dmg -format UDRW -o temp_rw.dmg
+
+CURSIZE=`hdiutil resize temp_rw.dmg | perl -n -e 'm/^\s*\d+\s+(\d+)\s+\d+$/ && print "$1\n";'`
+
+NEWSIZE=$(( CURSIZE + 20000))
+
+hdiutil resize -sectors $NEWSIZE temp_rw.dmg
+
+open /Volumes/Jalview\ Installer
+
+
+### Position/resize icons, extend size of Finder window, etc
+
+
+cp /Volumes/Jalview\ Installer/.DS_Store ./DS_Store_N
+
+umount /Volumes/Jalview\ Installer
+