The original tiles the Framework Desktop ships with don't let much air through as a trade off for aesthetics. These allow you to get much more airflow as well as pick your colors while maintaining a similar visual appearance.

I highly suggest printing this in PETG, nylon, or a similar lightly "bendy" plastic that does well with heat. Note that there are tiny tabs that may break off if settings are not right. More brittle plastics like PLA will almost certainly have issue with the tabs.

The example ones were printed in translucent PETG on an MK4S on the 0.2mm structural profile w/ a 0.4mm nozzle.

The base of the tiles is from the Framework blank tile models directly and this modification maintains the CC-BY-4.0 license.