The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
A white version of the very popular linen pattern.
Source Ant Ekşiler
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
The tile can be had by selecting the rectangle in Inkscape and using shift+alt+i. Remixed from a drawing in 'Flowers of Song', Frederick Weatherly, 1895.
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
From a drawing in 'A Guide to the Guildhall of the City of London', John Baddeley, 1898.
Source Firkin
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen
Prismatic Abstract Line Art Pattern Background
Source GDJ
Abstract Ellipses Background Grayscale
Source GDJ
Prismatic Geometric Pattern Background
Source GDJ
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
A seamless pattern formed from background pattern 102
Source Firkin