Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Alternative colour scheme. 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
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
A seamless paper background colored in pale yellow.
Source V. Hartikainen
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
A seamlessly tileable pink background texture.
Source V. Hartikainen