This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
TripleSpiralturns green transparent.svg and PostScript source code see File TripleSpiralSymbolturnsfilled svg Own vector equivalent of File TripleSpiralturns green transparent derived by starting with PD image File TripleSpiralSymbolturnsfilled svg flipping it removing background and coloring foreground fill green TripleSpiralSymbolturnsfilled