Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by k_jprather
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
From a drawing in 'Two Women in the Klondike', Mary Hitchcock, 1899.
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Prismatic Hexagonalist Pattern No Background
Source GDJ
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
White handmade paper pattern with small bumps.
Source Marquis