The complexity does not depend on the size of the patch :)
A one line patch can be much more complex than a 1k lines patch

On Wed, 29 Mar 2017 at 18:00 Cab Vinton <bibliwho@gmail.com> wrote:
On Wed, Mar 29, 2017 at 4:58 PM, Jonathan Druart
<jonathan.druart@bugs.koha-community.org> wrote:
> There is a "Patch complexity" field, but I personally do not use it (I
> should yes).

I've see. Don't think anyone else uses it either :-)

Would be cool if it auto-populated with the number of new/ different
lines in the patch ... Pretty rough & ready measure of complexity.