This background has abstract texture with some similarities to wood.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Remixed from a drawing in 'Canadian forest industries July-December', 1915
Source Firkin
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin