Changes
→profiles.xml structure
Now take a look at '''<depends profile-id="default" />''' entry in the next profile - '''<profile id="custom">'''.<br>
This profile only seems to contain a '''thunderbird''' package.<br>
But because it ''depends'' on '''<profile id="default">''', which contains two more packages ('''Acrobatacrobat''' and '''Firefoxfirefox''') - it all sums up, and in the end, a host with a profile '''custom''' will have three packages installed: '''acrobat''', '''firefox''' and '''thunderbird'''.