Original file by ric5sch here: https://openclipart.org/detail/211242/aphfxe6kkeng6a-by-ric5sch-211242. Using masking to add a bit of debth, might not rendered right with browsers.
circular fractal (remix) free icon was designed by Lazur URH for icons Png and presented to its users.
Lazur URH
2/5/2018