Question about ports config dialog

[Miroslav Lachman]

Matt Reimer wrote, On 10/01/2014 17:01:
> What does the "+" mean in the config dialogs that appear while building
> ports? Does it indicate a setting that's checked by default, or a
> recommendation, or ...?

It is newly added item in ports, that have their config saved in 
/var/db/ports from previous run and newer version has some new items in 
config dialog.

Miroslav Lachman