As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
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
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
Prismatic Groovy Concentric Background 2
Source GDJ
Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
Looks like an old wall. I guess that’s it then?
Source Viahorizon
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Derived from a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Psychedelic Geometric Background No Black
Source GDJ