not a bad plan...
https://wiki.mobileread.com/wiki/HowTo_Index#Modifying is editable by us all of course...
including you hehehe
Of course: a very KIND soul could even remove the need for the USBNETWORKING stage by making this a one shot TOGGLE WATERSTONES
KUAL utility button.
Simply make the script expect the replacement pictures IN A KNOWN LOCATION like say...
/mnt/us/extensions/waterstones/ss and do the swapping from there
Anyways... yes. good thoughts.
nice work!