Fabric (Plaid)@2X #592
Fabric CC BY-SA 3.0You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
More Textures
Tileable Off-white Background #1191
Concrete CC BY-SA 3.0A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
Brick #1377
Wall CC 0Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Abstract Tiled Background Extended 6 #517
Noise CC 0Abstract Tiled Background Extended 6
Source GDJ
Carpet seamless texture 3 #2553
Wall CC 0From an image on opengameart.org shared by rubberduck.
Source Firkin
Prismatic Abstract Line Art Pattern Background 2 #567
Dark CC 0Prismatic Abstract Line Art Pattern Background 2
Source GDJ
Inflicted #117
Grid CC BY-SA 3.0Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
White tiles@2X #728
Grid CC BY-SA 3.0A nice and simple white rotated tile pattern.
Source Another One
Prismatic Hypnotic Pattern No Background #571
Noise CC 0Prismatic Hypnotic Pattern No Background
Source GDJ
Rice Paper@2X #339
Paper CC BY-SA 3.0Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Connected@2X #349
Light CC BY-SA 3.0White circles connecting on a light gray background.
Source Mark Collins
Decorative divider 228 #2154
Dark CC 0Remixed from a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Subtle Carbon #949
Dark CC BY-SA 3.0There are many carbon patterns, but this one is tiny.
Source Designova
Background pattern 203 (colour 2) #2485
Green 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
Cardboard #278
Paper CC BY-SA 3.0A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
Old Mathematics #43
Stripes CC BY-SA 3.0This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green