Continuing the geometric trend, here is one more.
Source Mike Warner
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
It looks very nice I think.
Source V. Hartikainen
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Old China with a modern twist, take two.
Source Adam Charlts
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim