How Was This Color Picture 3D Printed?

It's called a lithophane! Usually they are black and white, but with this little trick you can make the picture colorized. Also, subscribe to make my day a little better:

Order a lithophane:
Creality CR-10 V2 3D printer:

Lithophane:
Text guide:

Music:
RETRO Xcape - Lahar
Soar - Scott Buckley

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