Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Here's a seamless brown cork board background texture. Feel free to download or reshare if you like.
Source V. Hartikainen
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
Prismatic Snowflakes Pattern 3 No Background
Source GDJ