Fix and cc0 to get the tile this is based on.
Source SliverKnight
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Classic 45-degree pattern, light version.
Source Luke McDonald
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
Old China with a modern twist, take two.
Source Adam Charlts
Derived from elements found in a floral ornament drawing on Pixabay.
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
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
A yellow tiled background... Blurriness, bokeh effect and rectangles pattern in one mix.
Source V. Hartikainen
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Prismatic Basic Pattern 2 No Background
Source GDJ
A background pattern with a look of rough fabric.
Source V. Hartikainen