Background pattern 259 (colour 5) #2098
 Pink  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

 More Textures
P4 #1111
 Light  CC BY-SA 3.0

I skipped number 3, because it wasn’t all that great. Sorry.

Source Dima Shiper

Dark Sharp Edges #1320
 Dark  CC BY-SA 3.0

Some dark 45 degree angles creating a nice pattern. Huge.

Source Dark Sharp Edges

Scallop #1690
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Tessellation 16 (colour 3) #2213
 Green  CC 0

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

Source Firkin

Green Gobbler #85
 Dark  CC BY-SA 3.0

Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.

Source Simon Meek

Concretia 1 #1408
 Gray  CC 0

Gamedev - Concrete Textures. CC0 License.

Source Davit Masia

Floral design 94 #1792
 Yellow  CC 0

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

Source Firkin

geometrical pattern 01 #2463
 Wall  CC 0

This is a geometrical seamless pattern.

Source Yamachem

Grunge For Surfaces 4 #1401
 Dark  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

flower seamless pattern #2272
 Brown  CC 0

This is a seamless pattern which is derived from a flower petal image.

Source Yamachem

Nistri #773
 Stripes  CC BY-SA 3.0

No idea what Nistri means, but it’s a crisp little pattern nonetheless.

Source Markus Reiter

Stone Wall & Red #1576
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Floral design 101 (version 2) #1757
 Green  CC 0

From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.

Source Firkin

Flower [email protected] #742
 Noise  CC BY-SA 3.0

Sharp pixel pattern, just like the good old days.

Source Paridhi

Pinstripe #35
 Light  CC BY-SA 3.0

Light gray pattern with a thin pinstripe.

Source Brandon

Faded Diagonal Stripes #1001
 Stripes  CC BY-SA 3.0

Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.

Source V. Hartikainen

Star pattern 2 #1898
 Dark  CC 0

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

Source Firkin

Watercolor #1477
 Colorful  CC 0

Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.

Source Ractapopulous

Clean gray paper #859
 Paper  CC BY-SA 3.0

On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.

Source Paul Phönixweiß

Background pattern 336 (colour 2) #1720
 Green  CC 0

Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.

Source Firkin

White [email protected] #132
 Light  CC BY-SA 3.0

Not the most creative name, but it’s a good all-purpose light background.

Source Dmitry

Fabric of Squares #1095
 Light  CC BY-SA 3.0

As far as fabric patterns goes, this is quite crisp.

Source Heliodor Jalba

Leaftrim & Black #1684
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

[email protected] #664
 Paper  CC BY-SA 3.0

This is so subtle I hope you can see it! Tweak at will.

Source Alexandre Naud

Plain & Walnut Dark #1358
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Subtle White Mini Waves #1322
 Unknow  CC BY-SA 3.0

Tiny circle waves, almost like the ocean.

Source Sagive

Background pattern black and white #2030
 Dark  CC 0

A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.

Source Firkin

Leaded glass background (colour 2) #2053
 Pink  CC 0

Seamless pattern the tile.

Source Firkin