The image depicts polka dot seamless pattern.
Source Yamachem
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A classic dark tile for a bit of vintage darkness.
Source Listvetra
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Here is a new seamless wood texture for using as blog or website backgrounds.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A version without colours blended together to give a different look.
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin