Gray Lines #913
 Light  CC BY-SA 3.0

Some more diagonal lines and noise, because you know you want it.

Source Atle Mo

 More Textures
Ecailles #1042
 Light  CC BY-SA 3.0

Almost like little fish shells, or dragon skin.

Source Graphiste

Decorative divider 225 #2155
 Dark  CC 0

From a drawing in 'Our own country', 1898.

Source Firkin

Moss #1290
 Wall  CC 0

ZeroCC tileable moss texture, photographed and made by me. CC0

Source Sojan Janso

flower seamless pattern #2272
 Brown  CC 0

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

Source Yamachem

Wood 3b #1446
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Farmer #659
 Fabric  CC BY-SA 3.0

Farmer could be some sort of fabric pattern, with a hint of green.

Source Fabian Schultz

Dark [email protected] #620
 Dark  CC BY-SA 3.0

Continuing the geometric trend, here is one more.

Source Mike Warner

Leafy pattern 12 (colour 2) #1761
 Red  CC 0

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

Source Firkin

Crossword #1301
 Light  CC BY-SA 3.0

Borderline too subtle. Yes, I said it.

Source Ideawebme

Background pattern 213 (colour) #2411
 Colorful  CC 0

A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. A version of the original with random colors.

Source Firkin

Wavy background #2018
 Colorful  CC 0

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

Source SliverKnight

Mix & Gray Pattern #1631
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Banner pack 6 #2438
 Colorful  CC 0

Three coloured banners. From an image on Pixabay.

Source Firkin

Cardboard Flat #961
 Gray  CC BY-SA 3.0

Not a flat you live inside, like in the UK – but a flat piece of cardboard.

Source Appleshadow

Retro Squares Background #414
 Noise  CC 0

Retro Squares Background

Source GDJ

Background pattern 258 #2135
 Dark  CC 0

Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Satin [email protected] #1045
 Light  CC BY-SA 3.0

Super simple but very nice indeed. Gray with vertical stripes.

Source Merrin Macleod

Background Patterns - Cerulean #245
 Fabric  CC 0

f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117

Source Viscious-Speed

Floors #1587
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Leafy pattern #1971
 Green  CC 0

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

Source Firkin

Grid #974
 Gray  CC BY-SA 3.0

There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.

Source Dominik Kiss

Rough Concrete Surface #1194
 Concrete  CC BY-SA 3.0

A seamless texture of a rough concrete surface.

Source V. Hartikainen

Background pattern 225 #2327
 Colorful  CC 0

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

Source Firkin

Background pattern brown #1951
 Brown  CC 0

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

Source Firkin

Floral design 90 #1815
 Dark  CC 0

From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.

Source Firkin

Food #1300
 Yellow  CC BY-SA 3.0

Holy mackerel, it’s colorful—but still subtle.

Source Ilya

Tessellation 15 (colour 2) #2221
 Yellow  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

[email protected] #46
 Paper  CC BY-SA 3.0

Looks a bit like concrete with subtle specks spread around the pattern.

Source Mladjan Antic

Decorative divider #1962
 Dark  CC 0

From a drawing in 'A Life Interest', Mrs Alexander, 1888.

Source Firkin