Could be paper, could be a Polaroid frame – up to you!
Source Chaos
emixed from a JPG that was uploaded to Pixabay by Kyotime
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
Prismatic Abstract Line Art Pattern Background
Source GDJ
Tiny circle waves, almost like the ocean.
Source Sagive
From a drawing in 'From Snowdon to the Sea. Striking stories of North and South Wales', Marie Trevelyan, 1895.
Source Firkin
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.
Source Yamachem
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
The image depicts polka dot seamless pattern.
Source Yamachem
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Black paper texture, based on two different images.
Source Atle Mo
Based from Design Kindle
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
A seamless pattern formed from a rectangular tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
You may use it as is, or modify it as you like.
Source V. Hartikainen
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo