Clean [email protected] #738
 Fabric  CC BY-SA 3.0

A nice light textile pattern for your kit.

Source N8rx

 More Textures
Tileable Off-white Background #1191
 Concrete  CC BY-SA 3.0

A free tileable background colored in off-white (antique white) color.

Source V. Hartikainen

Background pattern 308 (colour 4) #1868
 Green  CC 0

Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.

Source Firkin

Wavy background #2012
 Green  CC 0

A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic

Source Firkin

Prismatic Curved Diamond Pattern 2 No [email protected] #539
 Diamond  CC 0

Prismatic Curved Diamond Pattern 2 No Background

Source GDJ

Background pattern 261 #2076
 Dark  CC 0

Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861

Source Firkin

Cube & Dark #1626
 Dark  CC 0

Manmade & Civilisation-Tech-Lights. CC0 License.

Source Unknow

Decorative divider 218 #2232
 Dark  CC 0

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

Source Firkin

Background pattern 223 (colour 4) #2350
 Pink  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

Tile-able Black Paper Background #1076
 Paper  CC BY-SA 3.0

A black tile-able background with paper-like texture.

Source V. Hartikainen

Fabric (Plaid)@2X #592
 Fabric  CC BY-SA 3.0

You know you can’t get enough of these linen-fabric-y patterns.

Source James Basoo

Background pattern 259 #2133
 Red  CC 0

Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Decorative divider 286 #1824
 Dark  CC 0

Remixed from a PNG that was uploaded to Pixabay by VictorianLady

Source Firkin

Retro Circles Background [email protected] #432
 Unknow  CC 0

Retro Circles Background 7

Source GDJ

Floral background #1975
 Colorful  CC 0

Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.

Source Firkin

Vintage pattern 2 #2295
 Yellow  CC 0

Inspired 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

Stone Wall & Dark #1558
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Dark Brown Fabric-Like Texture #963
 Stripes  CC BY-SA 3.0

A seamless striped fabric-like texture colored in a dark reddish brown color.

Source V. Hartikainen

Prismatic Dots Background [email protected] #514
 Dark  CC 0

Prismatic Dots Background 7

Source GDJ

Seamless Core Pattern #165
 Dark  CC 0

Seamless Core Pattern

Source GDJ

Wavy background #2021
 Pink  CC 0

CC0 and a seamless pattern from a tile drawn in Paint.net .

Source SliverKnight

Strawberry pattern #1795
 Red  CC 0

To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i

Source Firkin

Dungeons & Flagons 10 #1426
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Leafy design 18 (colour) #1786
 Green  CC 0

From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.

Source Firkin

"Dark Metal Plate", Web Background #1084
 Metal  CC BY-SA 3.0

A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.

Source V. Hartikainen

Background pattern 19 (outline) #204
 Light  CC 0

A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.

Source Firkin

Background pattern 269 #2062
 Dark  CC 0

A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Wavy background #2013
 Pink  CC 0

A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic

Source Firkin

Txture #757
 Dark  CC BY-SA 3.0

Dark, lines, noise, tactile. You get the drift.

Source Anatoli Nicolae