Diamond pattern (colour 9) #2269
Fabric CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More Textures
Dark Wood@2X #321
Wood CC BY-SA 3.0A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Background pattern 2 #221
Noise CC 0A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
MBossed #193
Grid CC BY-SA 3.0Embossed lines and squares with subtle highlights.
Source Alex Parker
Rough Concrete Surface #1195
Concrete CC BY-SA 3.0This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Background pattern 201 (colour 3) #2493
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
Blizzard #663
Paper CC BY-SA 3.0This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Decorative divider 252 #2065
Dark CC 0Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
Prismatic Groovy Concentric Background 5 No Black #467
Dark CC 0Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Brick Wall@2X #1147
Wall CC BY-SA 3.0One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
Green and Yellow Lines on White Background #1000
Stripes CC BY-SA 3.0A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
Fabric (Plaid) #591
Fabric CC BY-SA 3.0You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Black Scales@2X #192
Dark CC BY-SA 3.0Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Light Gray Paper With Horizontal Lines #904
Stripes CC BY-SA 3.0A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
Diagmonds@2X #337
Dark CC BY-SA 3.0Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Background pattern 234 #2259
Brown CC 0Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Dark Grunge Texture (Seamless) #1125
Grunge CC BY-SA 3.0Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen
Wood Pattern@2X #371
Wood CC BY-SA 3.0One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Ground Cracked 2 #1280
Wall CC 0Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Dark Brick Wall@2X #136
Wall CC BY-SA 3.0Black brick wall pattern. Brick your site up!
Source Alex Parker
Background pattern 336 (colour 3) #1719
Blue CC 0Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
Floral background 17 (colour 2) #1850
Orange CC 0Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin