That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
This is the remix of "blue wave-seigaiha".This is the flowers of pink silk tree which is called "nemuno-ki".About pink silk tree ,refer to here:https://jp.pinterest.com/pin/500744052301210439/
Source Yamachem
Prismatic Abstract Geometric Background 4
Source GDJ
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Geometric triangles seem to be quite hot these days.
Source Pixeden
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen