Confectionary #1342
 Light  CC BY-SA 3.0

This could be a hippy vintage wallpaper.

Source Tileable Patterns

 More Textures
Wood Chips 5 #2103
 Unknow  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Decorative divider 224 #2206
 Dark  CC 0

Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.

Source Firkin

"Beige Stone", Tileable Texture #1025
 Stone  CC BY-SA 3.0

"Beige Stone", Tileable Texture.

Source V. Hartikainen

Background pattern 272 (colour 2) #2056
 Pink  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

Lined [email protected] #363
 Stripes  CC BY-SA 3.0

The classic notebook paper with horizontal stripes.

Source Are Sundnes

Stone Wall & Gray #1498
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background pattern 257 #2137
 Dark  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

[email protected] #128
 Dark  CC BY-SA 3.0

Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.

Source Ivan Ginev

Worn [email protected] #710
 Fabric  CC BY-SA 3.0

These dots are already worn for you, so you don’t have to.

Source Matt McDaniel

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

Debut Dark #1014
 Dark  CC BY-SA 3.0

Same classic 45-degree pattern, dark version.

Source Luke McDonald

Wavy background #2017
 Green  CC 0

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

Source Firkin

Colorful Geometric Pattern Background #231
 Noise  CC 0

PDP

Source GDJ

Dirty #1372
 Green  CC 0

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

Source Linolafett

White Bed Sheet #821
 Light  CC BY-SA 3.0

Nothing like a clean set of bed sheets, huh?

Source Badhon Ebrahim

Background pattern 323 (colour 5) #1808
 Noise  CC 0

Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.

Source Firkin

Background pattern 323 (colour 2) #1811
 Blue  CC 0

Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.

Source Firkin

Decorative divider 252 #2065
 Dark  CC 0

Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.

Source Firkin

Assault #827
 Dark  CC BY-SA 3.0

Dark, crisp and sort of muddy one.

Source Hendrik Lammers

Scallop #1690
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Page ornament #1989
 Dark  CC 0

Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.

Source Firkin

Asfault 1 #1380
 Dark  CC 0

Gamedev - Asphalt textures. CC0 License.

Source Davit Masia

Micro Carbon #7
 Carbon  CC BY-SA 3.0

Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.

Source Atle Mo

Prismatic Geometric Tessellation Pattern 2 No [email protected] #554
 Noise  CC 0

Prismatic Geometric Tessellation Pattern 2 No Background

Source GDJ

Wavy background #2014
 Blue  CC 0

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

Source Firkin

[email protected] #186
 Light  CC BY-SA 3.0

One more sharp little tile for you. Subtle circles this time.

Source Blunia

Background pattern #1977
 Dark  CC 0

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

Source Firkin