I've tested this quite a bit, but no luck.
Code:
program:
cmp(count(field('#fandoms'), '&'), 2, '', 'crossover.png', 'multi.png')
It's supposed to be a combination of these two:
Code:
program:
cmp(count(field('#fandoms'),'&'), 2,'','', 'multi.png')
and
Code:
program:
cmp(count(field('#fandoms'),'&'), 1,'','', 'crossover.png')