From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
Zero CC tileable hard cover cells book texture, 4k, scanned and made by me. CC0
Source Sojan Janso
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
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
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Gold Triangular Seamless Pattern No Background
Source GDJ
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso