A seamless background texture of old cardboard.
Source V. Hartikainen
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background
Source GDJ
Green Web Background, Seamless tile.
Source V. Hartikainen
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous