Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Black brick wall pattern. Brick your site up!
Source Alex Parker
A version without colours blended together to give a different look.
Source Firkin
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
A cute x, if you need that sort of thing.
Source Juan Scrocchi
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Colour version of the original seamless pattern.
Source Firkin
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin