Low Contrast [email protected] #864
 Dark  CC BY-SA 3.0

A smooth mid-tone gray, or low contrast if you will, linen pattern.

Source Jordan Pittman

 More Textures
45-Degree [email protected] #2
 Fabric  CC BY-SA 3.0

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

Source Atle Mo

Prismatic Abstract Geometric Background #269
 Noise  CC 0

Prismatic Abstract Geometric Background derived from an image on Pixabay.

Source GDJ

Background pattern Pink #1938
 Pink  CC 0

Fix and cc0 to get the tile this is based on.

Source SliverKnight

Floors & Block #1604
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Decorative divider 272 #1925
 Dark  CC 0

Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.

Source Firkin

Batthern #324
 Grid  CC BY-SA 3.0

Sometimes simple really is what you need, and this could fit you well.

Source Factorio.us Collective

PS Neutral #1134
 Light  CC BY-SA 3.0

This one is so simple, yet so good. And you know it. Has to be in the collection.

Source Gluszczenko

French [email protected] #698
 Paper  CC BY-SA 3.0

Fabric-ish patterns are close to my heart. French Stucco to the rescue.

Source Christopher Buecheler

Background pattern [email protected] #478
 Wall  CC 0

A background pattern drawn in Inkscape.

Source Firkin

Background pattern 306 #1882
 Colorful  CC 0

Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.

Source Firkin

"Animal Tracks", Background Pattern #1225
 Yellow  CC BY-SA 3.0

A seamless pale yellow paper background with a pattern of animal tracks.

Source V. Hartikainen

Scribble Light #739
 Paper  CC BY-SA 3.0

A bit like smudged paint or some sort of steel, here is scribble light.

Source Tegan Male

Noisy [email protected] #960
 Gray  CC BY-SA 3.0

This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.

Source Vectorpile

Wellington boots pattern #1900
 Colorful  CC 0

CC0 and seamless wellington boot pattern.

Source SliverKnight

Stone Wall & Yellow #1481
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Cuckoo Footprint #1321
 Unknow  CC BY-SA 3.0

A cute x, if you need that sort of thing.

Source Juan Scrocchi

Background pattern 235 #2255
 Yellow  CC 0

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

Source Firkin

Light Orange Brown Wallpaper #911
 Stripes  CC BY-SA 3.0

A free light orange brown wallpaper with vertical stripes designed for use as a tiled background on websites. An yet another background pattern with vertical stripes.

Source V. Hartikainen

Stone Wall & Yellow #1530
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Leaded glass background (colour 5) #2050
 Colorful  CC 0

Seamless pattern the tile.

Source Firkin

Purty [email protected] #678
 Wood  CC BY-SA 3.0

You know you love wood patterns, so here’s one more.

Source Richard Tabor

Door Rail & Black #1625
 Dark  CC 0

Manmade & Civilisation-Details. CC0 License.

Source Unknow

Pinstriped [email protected] #666
 Dark  CC BY-SA 3.0

Just like your old suit, all striped and smooth.

Source Alex Berkowitz

Stone Wall & Green #1533
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background pattern 315 (colour 4) #1842
 Colorful  CC 0

The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Retro Circles Background [email protected] #436
 Dark  CC 0

Retro Circles Background 8

Source GDJ

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

Background pattern green #1953
 Green  CC 0

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

Source Firkin

Decorative divider 283 (version 2) #1855
 Dark  CC 0

Remixed from a drawing in 'In an Enchanted Island', William Mallock, 1892.

Source Firkin

Background pattern 263 #2073
 Pink  CC 0

Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.

Source Firkin