Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
White little knobs, coming in at 10x10px. Sweet!
Source Amos
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Background formed from the original with an emboss effect.
Source Firkin
This is the remix of "Tileable Wave Pattern 2" uploaded by "Arvin61r58".Thanks.I added a wire-mesh fence seamless pattern as a lower layer.
Source Yamachem
Remixed from an image that was uploaded to Pixabay by CatherineClennan
Source Firkin
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim