Customized version of https://www.thingiverse.com/thing:6539709

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=6539709

Using the following options:

shape = 3
shell_thickness = 16
corner_resolution = 4
length = 200
width = 200
height = 20
radius = 14
generate_lid = 0
lid_side_cuttout = 1
lid_play = 1
pattern_shape = 1
punch_through = 1
pattern_size = 30
pattern_border_width = 10