I need help finding the hidden wiki background image

I have seen the hidden wiki background image and I cannot find it anywhere

https://preview.redd.it/1hr3ayicnage1.png?width=579&format=png&auto=webp&s=1f487a8da33ee9fbf41964c53277c6258f7ae9f3

it's different shades of gray in a soft, bedsheet or flower petal style.
If anyone knows where I can find the image or something similar, please help.