Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
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
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
A classic dark tile for a bit of vintage darkness.
Source Listvetra
Tiny circle waves, almost like the ocean.
Source Sagive
A repeating background of beige (or is it more vanilla yellow) textured stripes. One more background with stripes.
Source V. Hartikainen
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0
Source Sojan Janso
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Zero CC tileable pine bark texture, photographed and made by me. CC0
Source Sojan Janso
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
A seamless pattern based on a tile that can be achieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper