Sketchfab render and shading in three.js

I imported my .glb object in Sketchfab and I love option Renderer: RBG and Shading: Shadeless. How I can make the same effect in three.js?

THREE.MeshBasicMaterial is a shadeless surface model (i.e. it is not affected by lighting). If your glTF is not already shadeless you can convert it by replacing the materials after loading, or running:

gltf-transform unlit input.glb output.glb 
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Thank you so much!