This background has abstract texture with some similarities to wood.
Source V. Hartikainen
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Background formed from the original with an emboss effect
Source GDJ
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Prismatic Groovy Concentric Background 2
Source GDJ
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A web texture of brown canvas. Will look great, when used in dark web designs.
Source V. Hartikainen
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Fix and cc0 to get the tile this is based on.
Source SliverKnight
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
From a drawing in 'Royal Ramsgate', James Simson, 1897.
Source Firkin
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Prismatic Geometric Pattern Background 2
Source GDJ
Wasn't satisfied with the original's colouring. Too much component transfer and colormatrixes yet the results are lacking a bit. So this time it is a simple black to transparent fade, making it possible remixing easily once there will be other blending modes supported as well. Probably in inkscape 0.92.
Source Lazur URH