A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Colour version of the original pattern.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Prismatic Groovy Concentric Background
Source GDJ
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ