Same classic 45-degree pattern, dark version.
Source Luke McDonald
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using 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
Neat little photography icon pattern.
Source Hossam Elbialy
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
The tile can be had by using shift+alt+i on the selected rectangle in Inkscape
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
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
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin