Remixed from a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Inspired by a design found in 'Konstantinápolyi emlékeim', Miklos Chriszto, 1893.
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Just like the black maze, only in light gray. Duh.
Source Peax
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
A background tile of dark textile. Made this a long time ago and just now decided to publish it.
Source V. Hartikainen
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Prismatic Abstract Geometric Background 4
Source GDJ
Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 5
Source GDJ
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
The classic notebook paper with horizontal stripes.
Source Are Sundnes
This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee