visicut_profiles/materials/Karton_300g.xml

<material>
  <engraveColor>#404040</engraveColor>
  <cutColor>#ff0000</cutColor>
  <color>#FFFFFF</color>
  <name>Karton 300g</name>
  <materialThicknesses>
    <float>0.3</float>
  </materialThicknesses>
</material>