One of the first projects I completed was creating a power test sheet. LightBurn has a built-in tool for this but for some reason I had trouble using that. I've resolved my problems with the built-in tool but I still find this useful in many situations.
Here are some details about the design:
Uses a window shape with both sharp corners and rounded edges
Has 7-layers allowing custom speed on each layer
Power is set on each shape (LightBurn file only)
Shapes are engraved from least to most power (LightBurn file only)
Shapes are engraved from most to least speed (LightBurn file only)
Mini test is a small version of the larger test
The _variable_ version adds automatic labels based on layer settings