A comeback for you: the popular Escheresque, now in black.
Source Patten
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless paper background colored in pale yellow.
Source V. Hartikainen
Inspired by a pattern I saw in a 19th century book. This seamless pattern was created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. Version with black background.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Subtle scratches on a light gray background.
Source Andrey Ovcharov
This is the remix of "Colorful Floral Pattern Background 3" uploaded by "GDJ". Thanks.
Source Yamachem
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous