I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
The image depicts the Japanese Edo pattern called "seigaiha" or "青海波" meaning "blue -sea- wave".I hope it's suitable for the summer season.
Source Yamachem
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Prismatic Hypnotic Pattern No Background
Source GDJ
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Zero CC tileable cork floor, photographed and made by me. CC0
Source Sojan Janso
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
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
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by k_jprather
Source Firkin
A seamless pattern formed from miutopia's cakes on a tablecloth.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i
Source Firkin
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud