A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Fix side and a seamless pattern formed from circles.
Source SliverKnight
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Inspired by a pattern I saw in a 19th century book. This seamless pattern was created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
Derived from a drawing in 'Elfrica. An historical romance of the twelfth century', Charlotte Boger, 1885
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
Looks like an old wall. I guess that’s it then?
Source Viahorizon
A seamless pattern formed from miutopia's cakes on a tablecloth.
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Plywood Web Background background image for use in web design.
Source V. Hartikainen
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.