Background pattern 201 (colour 2) #2496
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
More Textures
Brushed Alum Dark@2X #66
Dark CC BY-SA 3.0Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Background pattern 214 (colour 3) #2375
Green CC 0A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
crissXcross #111
Dark CC BY-SA 3.0Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Desert Camo Print #255
Fabric CC 0Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Background pattern 235 (colour 3) #2253
Pink CC 0To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Decorative divider 298 #1744
Dark CC 0From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Stucco@2X #295
Wall CC BY-SA 3.0A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
Redox 02 #851
Light CC BY-SA 3.0After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Pyramid@2X #896
Light CC BY-SA 3.0Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Background pattern black and white #2030
Dark CC 0A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Prismatic Groovy Concentric Background 5@2X #466
Dark CC 0Prismatic Groovy Concentric Background 5
Source GDJ
Prismatic Snowflakes Pattern 3 No Background #413
Light CC 0Prismatic Snowflakes Pattern 3 No Background
Source GDJ
Decorative divider 193 #2502
Dark CC 0From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
Background pattern 260 #2094
Orange CC 0Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
Diamond pattern 2 (colour 2) #2267
Colorful CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Subtle White Mini Waves #1322
Unknow CC BY-SA 3.0Tiny circle waves, almost like the ocean.
Source Sagive
Green Tiles, Background Pattern #1329
Green CC BY-SA 3.0A free background pattern with abstract green tiles.
Source V. Hartikainen
Straws #972
Light CC BY-SA 3.0Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
Skeletal Weave@2X #932
Light CC BY-SA 3.0Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Vintage pattern #2296
Brown CC 0Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Snowflakes Pattern No Background #411
Light CC 0Prismatic Snowflakes Pattern No Background
Source GDJ
Prismatic Floral Pattern 3 Variation 3 No Background #386
Noise CC 0Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Soft Kill@2X #319
Dark CC BY-SA 3.0Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective