The original has been presented as black on transparent and stored in the pattern definitions. To retrieve the unit tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by k_jprather
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
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
A nice and simple white rotated tile pattern.
Source Another One
Prismatic Hypnotic Pattern No Background
Source GDJ
The image depicts a seamless pattern which was made using stripe-like things including borders.I used OCAL cliparts called "Blue Greek Key With Lines Border" uploaded by "GR8DAN" and "daisy border" uploaded by "johnny_automatic".Thanks.
Source Yamachem
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
Psychedelic Geometric Background No Black
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida