A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
From a tile that 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
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
A seamless web texture of "green stone".
Source V. Hartikainen
Alternative colour scheme to the original.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Black brick wall pattern. Brick your site up!
Source Alex Parker
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.
Source BAJ
Prismatic Abstract Geometric Background 4
Source GDJ
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin