Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
More in the paper realm, this time with fibers.
Source Jorge Fuentes
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
Background formed from the original with an emboss effect
Source GDJ
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
This is the remix of "Colorful Floral Pattern Background 3" uploaded by "GDJ". Thanks.
Source Yamachem
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Pattern produced in Paint.net using the Vibrato plug-in.
Source Firkin
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton