Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Prismatic Geometric Pattern Background
Source GDJ
Retro Circles Background 5 No Black
Source GDJ
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
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
From a tile that 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
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
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
Colourful background achieved with gradient fills.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso