These 0.2mm high, 2D sine waves based on https://www.thingiverse.com/thing:11243 are for testing bed leveling and adhesion. Since the printhead is always changing direction during the sinusoidal motion, poor adhesion will show up as straight lines between where the filament tacks to the bed.

The line widths on these traces are 0.3, 0.0, 0.5, 0.6, and 0.7mm, so you may need to enable the PrusaSlicer's "PrintSettings/Layers and Perimeter/Detect Thin Walls" option or equivalent.