Carbon Fiber #3
Carbon CC BY-SA 3.0A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
More Textures
Diamond pattern (colour 5) #2281
Red CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Flower Trail@2X #742
Noise CC BY-SA 3.0Sharp pixel pattern, just like the good old days.
Source Paridhi
Fabric pattern (colour 5) #2398
Fabric CC 0Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background pattern 220 (colour) #2359
Pink CC 0Colour version of the original seamless pattern.
Source Firkin
Prismatic Groovy Concentric Background 5 No Black@2X #468
Dark CC 0Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Floral background 17 #1851
Green CC 0Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Frozen Surface With Diagonal Stripes #912
Stripes CC BY-SA 3.0This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen
Groovepaper #577
Paper CC BY-SA 3.0With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
White carbon@2X #12
Carbon CC BY-SA 3.0Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Background pattern 252 (colour 2) #2156
Brown CC 0Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Floral pattern 7 (colour 5) #2287
Green CC 0Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Background pattern 269 #2062
Dark CC 0A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Checkered Pattern #322
Grid CC BY-SA 3.0Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Gold Scale #284
Light CC BY-SA 3.0More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Checkered Pattern@2X #323
Grid CC BY-SA 3.0Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Chipboard #2581
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Decorative divider 192 #2503
Dark CC 0From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
WaveCut #75
Light CC BY-SA 3.0If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Colourful background 14 (colour 2) #2525
Colorful CC 0An alternative colour scheme for the original background.
Source Firkin
Tweed@2X #1151
Dark CC BY-SA 3.0Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Background pattern 7 #227
Noise CC 0Pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Prismatic Curved Diamond Pattern 5 No Background@2X #544
Diamond CC 0Prismatic Curved Diamond Pattern 5 No Background
Source GDJ