A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
This is the remix of "blue wave-seigaiha".The image depicts a seamless pattern of the front upper part of Japanese five yen coin which is used currently.This design represents a rice with ripe golden ears.
Source Yamachem
White circles connecting on a light gray background.
Source Mark Collins
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
Sort of reminds me of those old house wallpapers.
Source Tish
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Black And White Floral Pattern Background from PDP.
Source GDJ
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
The image is a design of blue glass.How about using it as background image?
Source Yamachem
Prismatic Abstract Geometric Background 4
Source GDJ
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
From a drawing in 'Royal Ramsgate', James Simson, 1897.
Source Firkin
A seamless textured paper for backgrounds. Colored in pale orange hues.
Source V. Hartikainen
Adapted from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin