It would be helpfull to change the image file (png) of an existing Image in the image library. So no nodes must be reconfigured. If you choose 'edit' of an image in image library you can choose another image file but on 'Ok' you get the error message "Image xy in Network Objects category already exists."
Looks like a bug in image library. Edit action supposed to do exactly this - replace existing image with new one.
Best regards,
Victor
I thought too that should be the normal behaviour. So I wait with the next image changes for V1.2.15. Thanks.
Fix will be included in next release