P5@2X #1114
Light CC BY-SA 3.0Number five from the same submitter, makes my job easy.
Source Dima Shiper
More Textures
Use Your Illusion@2X #918
Dark CC BY-SA 3.0A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Wavy background #2022
Blue CC 0CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Background pattern 289 #1937
Orange CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Fire diamond #2488
Diamond CC 0U.S.-based National Fire Protection Association standard fire diamond for flagging risks posed by hazardous materials. The red diamond has a number 0-4 depending on flammability. The blue diamond has a number 0-4 depending on health hazard. The yellow has a number 0-4 depending on reactivity. the white square has a special notice, e.g OX for oxidizer.
Source Firkin
Tex2res3@2X #724
Fabric CC BY-SA 3.0Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Bright Squares@2X #88
Light CC BY-SA 3.0It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Fence 6 #2575
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Gray Sand #17
Dark CC BY-SA 3.0A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Background pattern 333 (version 2) #1739
Blue CC 0The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Prismatic Geometric Pattern Background #407
Noise CC 0Prismatic Geometric Pattern Background
Source GDJ
Tessellation 16 (colour 5) #2211
Yellow CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
"Beige Stone", Seamless Web Texture #1031
Stone CC BY-SA 3.0It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
Zig-zag pattern #2418
Grid CC 0A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
White Wall #771
Wall CC BY-SA 3.0A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Arches #715
Light CC BY-SA 3.0One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Seamless Pink Background Texture #1233
Pink CC BY-SA 3.0A seamlessly tileable pink background texture.
Source V. Hartikainen
Carbon Fiber Big #326
Carbon CC BY-SA 3.0Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Fruit pattern 4 #2453
Pink CC 0A chequerboard pattern with a fruit theme. The fruits are from a posting by inkscapeforum.it.
Source Firkin
Square ornament 32 #2433
Dark CC 0Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Decorative divider 251 #2069
Dark CC 0Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Abstract Tiled Background Extended 12 #523
Noise CC 0Abstract Tiled Background Extended 12
Source GDJ
Zodiac pattern #2407
Colorful CC 0A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
Dark Mosaic@2X #122
Dark CC BY-SA 3.0Small dots with minor circles spread across to form a nice mosaic.
Source John Burks