A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
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
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
The image is a seamless pattern which is derived from a vine .Consequently, the vine got like dots via vectorization.The original vine is here:jp.pinterest.com/pin/500744052301410188/
Source Yamachem
Prismatic Groovy Concentric Background 2
Source GDJ
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Sharp but soft triangles in light shades of gray.
Source Pixeden
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868.
Source Firkin
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Prismatic Abstract Background Design No Black
Source GDJ
Might not be super subtle, but quite original in its form.
Source Alex Smith
Prismatic Hexagonalism Pattern No Background
Source GDJ
Zero CC tileable yellow craft paper; scanned and made by me. CC0
Source Sojan Janso
This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
Black And White Floral Pattern Background Inverse
Source GDJ
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
A bit strange this one, but nice at the same time.
Source Diogo Silva