Almost like little fish shells, or dragon skin.
Source Graphiste
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A nice and simple white rotated tile pattern.
Source Another One
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Number five from the same submitter, makes my job easy.
Source Dima Shiper
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Alternative colour scheme for the original floral pattern.
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin