Background pattern originally a PNG drawn in Paint.net
Source Firkin
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
One more sharp little tile for you. Subtle circles this time.
Source Blunia
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Dark blue concrete wall with some small dust spots.
Source Atle Mo
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Prismatic Hexagonalist Pattern No Background
Source GDJ
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson