I created this lithophane to honor jazz artist, songwriter, and activist Nina Simone (1933-2003) during Black History Month 2020.
I used Image to Lithophane at http://3dp.rocks/lithophane/ (to which I donate) to make the lithophane.
I created the background design in Tinkercad's Codeblocks coding environment, then imported it as a Part to their standard CAD environment for fine-tuning with the lithophane.
For lithophanes, you need to use 100% infill otherwise the the fill structure will be visible in thicker sections. I used a .1 mm layer height here. Thinnest section is .2mm, thickest is 2.9.