Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Neat little photography icon pattern.
Source Hossam Elbialy
Sometimes you just need the simplest thing.
Source Fabricio
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
This is the remix of "Colorful Floral Pattern Background 3" uploaded by "GDJ". Thanks.
Source Yamachem
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
From a drawing in 'Codogno e il suo territorio nella cronaca e nella storia'', Gio and Giarella Cairo, 1897.
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Pattern formed from simple shapes. Black version.
Source Firkin