Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Similar to original, but without gaps in between the arrows. This seamless pattern was created from a rectangular tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
This could be a hippy vintage wallpaper.
Source Tileable Patterns
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua