A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Prismatic Triangular Background Design Mark II 5
Source GDJ
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Background formed from the original with an emboss effect
Source GDJ
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin