Gravel 3 Roughness #1472
 Dark  CC 0

Gravel style CC0 texture.

Source StruffelProductions

 More Textures
Fabric pattern 3 (colour 6) #2382
 Fabric  CC 0

Alternative 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

Stone Wall & Dark #1549
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background pattern 220 (colour) #2359
 Pink  CC 0

Colour version of the original seamless pattern.

Source Firkin

Stone Wall & Gray #1509
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Textured Orange Stripe Pattern #997
 Stripes  CC BY-SA 3.0

A textured orange background pattern with vertical stripes.

Source V. Hartikainen

Wave [email protected] #1133
 Light  CC BY-SA 3.0

Submitted by DomainsInfo – wtf, right? But hey, a free pattern.

Source DomainsInfo

Background pattern 223 (colour 2) #2352
 Blue  CC 0

Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.

Source Firkin

Dark Wall #817
 Dark  CC BY-SA 3.0

Just to prove my point, here is a slightly modified dark version.

Source Atle Mo

Floral design #1985
 Dark  CC 0

Remixed from a drawing in 'Line and form', Walter Crane, 1914.

Source Firkin

Page ornament 29 #2307
 Red  CC 0

From a drawing in 'Az Osztrák-Magyar Monarchia irásban és képben', 1885.

Source Firkin

Gold Wall & Dark #1254
 Wall  CC 0

Zerro CC tillable texture of stones photographed and made by me. CC0

Source Sojan Janso

Subtle [email protected] #926
 Light  CC BY-SA 3.0

Super subtle indeed, a medium gray pattern with tiny dots in a grid.

Source Designova

Parquet flooring pattern (colour 2) #2426
 Green  CC 0

A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.

Source Firkin

Decorative divider 244 #2080
 Dark  CC 0

From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.

Source Firkin

Prismatic Abstract Geometric Background #269
 Noise  CC 0

Prismatic Abstract Geometric Background derived from an image on Pixabay.

Source GDJ

Pattern & Mix #1620
 Wall  CC 0

Fence. CC0 License.

Source Unknow

Decorative divider 287 #1821
 Dark  CC 0

From a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.

Source Firkin

Dirty #1371
 Unknow  CC 0

Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!

Source Linolafett

Page ornament 23 #2357
 Dark  CC 0

Formed in Paint.net and vectorised in Vector Magic.

Source Firkin

Stone Wall & Yellow #1514
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Diamond pattern (colour 4) #2282
 Blue  CC 0

From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Diamond pattern 2 (colour 4) #2265
 Red  CC 0

From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Floors & Dark #1617
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Decorative divider 233 #2145
 Dark  CC 0

From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.

Source Firkin

Random Binary Background #274
 Light  CC 0

Random Binary Background

Source GDJ

Carbon Fiber [email protected] #106
 Carbon  CC BY-SA 3.0

One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.

Source Atle Mo

[email protected] #194
 Grid  CC BY-SA 3.0

Embossed lines and squares with subtle highlights.

Source Alex Parker

Blue & Fissure & Cube #1702
 Wall  CC 0

Background Wall, Art Abstract, Blue Well & CC0 texture.

Source Ractapopulous