45-Degree Fabric@2X #2
Fabric CC BY-SA 3.0Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
More Textures
Bark #1288
Wall CC 0Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Tasky #667
Dark CC BY-SA 3.0Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Bedge Grunge #978
Paper CC BY-SA 3.0A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Noisy@2X #46
Paper CC BY-SA 3.0Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
Wavy background #2012
Green CC 0A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Grilled Noise #581
Fabric CC BY-SA 3.0You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Diagonales Decalées@2X #1019
Light CC BY-SA 3.0Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Background pattern 215 (colour 2) #2370
Blue CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Diamond pattern (colour 6) #2280
Yellow CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Decorative divider 194 #2478
Dark CC 0From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin