This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
A seamless pattern made from the gold Penrose triangle by GDJ and the two remixes
Source Firkin
Prismatic Abstract Geometric Background 5
Source GDJ
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
The image is the remix of "wire-mesh fence seamless pattern" .This is a more minute version of it.Sorry for the file size.Using path>difference in Inkscape, I will cut out any silhouette from this pattern and create a "meshed silhouette".
Source Yamachem
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Curved Diamond Pattern No Background
Source GDJ
Retro Circles Background 7 No Black
Source GDJ
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Zero CC tileable pine bark texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
The image is a seamless pattern of a fishnet.
Source Yamachem
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
The name tells you it has curves. Oh yes, it does!
Source Peter Chon