The word 'Aesthetic' in digikam

Hi,

While translating digKam, recently some phrases pop up:

Detect if the image is aesthetic
Aesthetic Detection to classify images using deep learning model

To be sure; the term 'aesthetic' is it a general term ('pleasant for the 
eyes', 'beautiful', etc) or a proper name from some defined algorithm 
(Aesthetic Detection defines a class of images called 'Aesthetic')?
I guess it's the former, but want to be sure.

Best regards,
Sveinn í Felli