PLA is the material I used (which, <3 for shipping it with that!). All the rest of that wizardry is whatever Rick has it set to when he generated the files.
; layer_height = 0.2 ; perimeters = 3 ; solid_layers = 3 ; fill_density = 0.2 ; nozzle_diameter = 0.35 ; filament_diameter = 1.75 ; extrusion_multiplier = 1 ; perimeter_speed = 70 ; infill_speed = 90 ; travel_speed = 300 ; extrusion_width_ratio = 0 ; scale = 1 ; single wall width = 0.49mm
It means I prefer PLA over other available plastics.