Sort of reminds me of those old house wallpapers.
Source Tish
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.
Source Yamachem
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
You know I love paper patterns. Here is one from Stephen. Say thank you!
Source Stephen Gilbert
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
Seamless Prismatic Geometric Pattern With Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
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
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Prismatic Polka Dots Mark II No Background
Source GDJ
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen