A DESCRIPTION OF THE PROBLEM :
I am using javapackager to generate a .pkg file. To put a background icon, I have placed package/macosx/APPNAME-background.png
It picks the image file correctly but the alignment is taken as bottomleft (from the generated distribution dist file).
I modified the distribution dist file and copied in package/macosx folder.
This file is not picked when I run the packager command again.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create a distribution.dist file and put it in package/macosx folder.
Run javapackager command to create a .pkg file.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
It should pick the customized distribution.dist file the way it picks the Info.plist file
ACTUAL -
It generates its own distribution.dist file and put it in the temp folder

FREQUENCY : always