This is another openscad script that was generated with AI, specifically Gemini by describing and telling it to generate an openscad script.

This is a cover for the bottom of your planter pot, so that your finer additives do not get flushed out with the water, and/or to help with pots that have extra large drainage holes. This script has the option to make it square/rectangular or round, and the bonus to get a polygon ( 5 sides, 6 sides, etc) by setting the resolution of the circle and using round to a low resolution like 5 or 6. This prints flat(duh) and can be resized to your needs.