Sample portraits for mock mode (person_*.jpg), from Unsplash under the
Unsplash License (free to use, no attribution required). Source photo ids:

person_alex.jpg    photo-1507003211169-0a1dd7228f2d
person_sam.jpg     photo-1500648767791-00dcc994a43e
person_priya.jpg   photo-1494790108377-be9c29b29330
person_jordan.jpg  photo-1472099645785-5658abf4ff4e
person_mei.jpg     photo-1544005313-94ddf0286df2
person_tom.jpg     photo-1506794778202-cad84cf45f1d
person_ade.jpg     photo-1531123897727-8f129e1688ce
person_lena.jpg    photo-1438761681033-6461ffad8d80

They stand in for real users' photos in the preview only.