This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Prismatic Snowflakes Pattern No Background
Source GDJ
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Zero CC tileable yellow craft paper; scanned and made by me. CC0
Source Sojan Janso
Classic vertical lines, in all its subtlety.
Source Cody L