Background pattern 15 #201
Dark CC 0A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
More Textures
Background pattern 203 #2486
Brown CC 0A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Washi #288
Light CC BY-SA 3.0Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Graphcoders Lil Fiber@2X #730
Fabric CC BY-SA 3.0Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Background pattern 221 #2347
Dark CC 0A seamless pattern formed from a tile made from ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Back Pattern@2X #946
Light CC BY-SA 3.0Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Leafy pattern 12 (colour) #1762
Red CC 0From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Floral background 17 #1851
Green CC 0Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Wall #1248
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Green Fibers@2X #92
Dark CC BY-SA 3.0The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Pinstriped Suit #665
Dark CC BY-SA 3.0Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Grey Washed Wall@2X #1129
Wall CC BY-SA 3.0This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Seamless tile 4 #1812
Red CC 0Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Triangles@2X #744
Grid CC BY-SA 3.0Sharp but soft triangles in light shades of gray.
Source Pixeden
Floral tile 4 #1710
Dark CC 0Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
Abstract Arbitrary Geometric Background #497
Noise CC 0Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Gold Wall & Dark #1254
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Seamless Gray Stone Background #1028
Stone CC BY-SA 3.0This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Cover Pink #1284
Pink CC 0Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
birdface seamless pattern #2470
Unknow CC 0The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Small Crackle Bright@2X #353
Light CC BY-SA 3.0Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner