This was formed by distorting an image of a background on Pixabay.
Source Firkin
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
More in the paper realm, this time with fibers.
Source Jorge Fuentes
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
This could be a hippy vintage wallpaper.
Source Tileable Patterns
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Spice up your next school project with this icon background.
Source Swetha
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Retro Circles Background 8 No Black
Source GDJ
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
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
Background pattern originally a PNG drawn in Paint.net
Source Firkin
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Sharp pixel pattern, just like the good old days.
Source Paridhi
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
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 Abstract Background Design
Source GDJ