Bed Clean layer

I had a need to cleanse and scrub my Ender 3 Pro magnetic bed, there was still some platstic stuck on it, and rubbing the waste did only damage the surface of my bed.
Someone told me that printing over a hot layer of material (like PLA) should get rid of all the remains without further damages.

So I designed a simple layer of 0.3mm scaled to my Ender 3 Pro : 190x190x0.3mm

Feel free to resize it at will directly in Cura to match your printer dimensions.