White handmade paper pattern with small bumps.
Source Marquis
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
A browner version of the original weathered fence texture.
Source Firkin
The image is a seamless pattern which is derived from a vine .Consequently, the vine got like dots via vectorization.The original vine is here:jp.pinterest.com/pin/500744052301410188/
Source Yamachem
Colourful background achieved with gradient fills.
Source Firkin
The original enhanced with some gradients.
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
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Prismatic Groovy Concentric Background 3
Source GDJ
The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
A version without colours blended together to give a different look.
Source Firkin
Background pattern originally a PNG drawn in Paint.net
Source Firkin
Classic 45-degree pattern, light version.
Source Luke McDonald