Seamless Marble Like Texture (Light Blue) #1033
 Stone  CC BY-SA 3.0

A seamless marble-like texture colored in light blue.

Source V. Hartikainen

 More Textures
Cherry pattern #1912
 Unknow  CC 0

Used a cherry by doctormo to make this seamless pattern

Source Firkin

Redox [email protected] #850
 Light  CC BY-SA 3.0

Bright gray tones with a hint of some metal surface.

Source Hendrik Lammers

Use Your Illusion #917
 Dark  CC BY-SA 3.0

A dark one with geometric shapes and dotted lines.

Source Mohawk Studios

Abstract Tiled Background Extended 6 #517
 Noise  CC 0

Abstract Tiled Background Extended 6

Source GDJ

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

A nice light textile pattern for your kit.

Source N8rx

Background pattern 6 #226
 Noise  CC 0

A pattern derived from part of a fractal rendering in Paint.net.

Source Firkin

Floral #1679
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Light Wool #695
 Grid  CC BY-SA 3.0

Submitted as a black pattern, I made it light and a few steps more subtle.

Source Andy

Background pattern 239 #2218
 Dark  CC 0

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

Source Firkin

Block Well #1698
 Colorful  CC 0

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

Source Ractapopulous

Abstract Tiled Background Extended 10 #521
 Noise  CC 0

Abstract Tiled Background Extended 10

Source GDJ

Wood 10 #1455
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Background pattern 19 (black) #203
 Dark  CC 0

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

Source Firkin

Wall #1249
 Wall  CC 0

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

Source Sojan Janso

Pattern #1476
 Paper  CC 0

Pattern Background, Texture, Photoshop Structure style CC0 texture.

Source Darkmoon1968

Background pattern 248 #2181
 Dark  CC 0

To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

[email protected] #958
 Dark  CC BY-SA 3.0

I guess this one is inspired by an office. A dark office.

Source Andrés Rigo.

Fabric pattern (colour 5) #2398
 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 & Yellow #1519
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Otis Redding #1004
 Gray  CC BY-SA 3.0

Otis Ray Redding was an American soul singer-songwriter, record producer, arranger, and talent scout. So you know.

Source Thomas Myrman

Burried #831
 Dark  CC BY-SA 3.0

Have you wondered about how it feels to be buried alive? Here is the pattern for it.

Source Hendrik Lammers

Gloomy Stripes #994
 Stripes  CC BY-SA 3.0

A dark striped seamless pattern suitable for use as a background on websites.

Source V. Hartikainen

45-Degree Fabric #1
 Fabric  CC BY-SA 3.0

Medium gray fabric pattern with 45-degree lines going across.

Source Atle Mo

Background pattern 5 #224
 Noise  CC 0

A pattern drawn in Paint.net and vectorized in Inkscape.

Source Firkin

Old Map #1205
 Unknow  CC BY-SA 3.0

An interesting one. Lovely at 2X as well!

Source Andreas Föhl

Retro Squares Background [email protected] #798
 Noise  CC 0

Retro Squares Background 6

Source GDJ

blocky filter pack 2 #158
 Noise  CC 0

Wasn't satisfied with the original's colouring. Too much component transfer and colormatrixes yet the results are lacking a bit. So this time it is a simple black to transparent fade, making it possible remixing easily once there will be other blending modes supported as well. Probably in inkscape 0.92.

Source Lazur URH

Light Gray #1203
 Gray  CC BY-SA 3.0

Like the name says, light and gray, with some small dots and circles.

Source Brenda Lay

Black Mamba #57
 Dark  CC BY-SA 3.0

The name alone is awesome, but so is this sweet dark pattern.

Source Federica Pelzel