visicut_profiles/materials/Graue_Pappe.xml

<material>
  <engraveColor>#000cff</engraveColor>
  <cutColor>#ff0000</cutColor>
  <color>#808080</color>
  <name>Graue Pappe</name>
  <materialThicknesses>
    <float>0.55</float>
  </materialThicknesses>
</material>