From an image on opengameart.org shared by rubberduck.
Source Firkin
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
ZeroCC tileable beechwood wood texture, generated in Neo Texture Edit by me. CC0
Source Sojan Janso
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Remixed from a vector adapted from a jpg on Pixabay. The tile this is constructed from can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
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
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf