To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
A repeating background with wood/straw like texture.
Source V. Hartikainen
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
An aged paper background tile with smeared and pressed text.
Source V. Hartikainen
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso