Tessellation 16 (colour 4) #2212
Green CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
More Textures
White Well & Fissure #1701
Wall CC 0Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
Noisy Net@2X #977
Dark CC BY-SA 3.0Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
Gray Sand #17
Dark CC BY-SA 3.0A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
White Brick Wall #593
Wall CC BY-SA 3.0If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Nasty Fabric #1008
Gray CC BY-SA 3.0Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
Repeating Wood Straw Background #887
Wood CC BY-SA 3.0A repeating background with wood/straw like texture.
Source V. Hartikainen
Subtle Striped Brown Background Pattern #940
Stripes CC BY-SA 3.0Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
Background pattern 252 #2162
Dark CC 0Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern 252 (colour 6) #2157
Light CC 0Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern 21 #205
Light CC 0A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
Background pattern 201 #2501
Grid CC 0A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Wavy background #2019
Colorful CC 0CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Decorative divider 247 #2077
Dark CC 0From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Dark Wall@2X #818
Dark CC BY-SA 3.0Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Background Patterns - Emerald #252
Fabric CC 0If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Colourful background #2010
Colorful CC 0Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Subtle Stripes@2X #752
Stripes CC BY-SA 3.0Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Green Fibers #91
Dark CC BY-SA 3.0The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Wall #1248
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Curved Diamond Pattern 8 No Background #549
Dark CC 0Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Green Background With Leaves #1331
Green CC BY-SA 3.0It looks very nice I think.
Source V. Hartikainen