The image is a seamless pattern of a fishnet.
Source Yamachem
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Abstract Tiled Background Extended 10
Source GDJ
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Light and tiny, just the way you like it.
Source Rohit Arun Rao
More in the paper realm, this time with fibers.
Source Jorge Fuentes
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Psychedelic Geometric Background No Black
Source GDJ
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin