thumbnail => array(
width => 150
height => 150
crop => 1
)
medium => array(
width => 300
height => 300
crop => 1
)
medium_large => array(
width => 768
height => 0
crop =>
)
large => array(
width => 1024
height => 1024
crop =>
)
1536x1536 => array(
width => 1536
height => 1536
crop =>
)
2048x2048 => array(
width => 2048
height => 2048
crop =>
)