A seamless pattern the starting point for which was a 'light rays' rendering in Paint.net.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Prismatic Abstract Geometric Background 4
Source GDJ
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
This could be a hippy vintage wallpaper.
Source Tileable Patterns
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Pattern produced in Paint.net using the Vibrato plug-in.
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
A seamless pattern formed from background pattern 102
Source Firkin
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Colorful Floral Background No Black
Source GDJ