DESKTOP
Total size 1920x972 px
Safearea centered vertically 1580x450 px (170 px to top)
Max weight 500kb
File format JPG
MOBILE
Total size 1080x1920 px
Safearea centered vertically 1000x850 px (220 px to top)
Max weight 300kb
File format JPG
test link (open in icognito mode)