/usr/share/kde4/apps/lemon/lemon.notifyrc is in lemonpos-data 0.9.2-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | [Global]
IconName=lemon
Comment=Lemon Point of Sale
Name=lemonPOS
[Event/information]
Name=information
Comment=Show pertinent information
Action=Sound|Popup
|