Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Fix and cc0 to get the tile this is based on.
Source SliverKnight
Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Kaleidoscope Prismatic Abstract No Background
Source GDJ
This is the remix of "blue wave-seigaiha".The image depicts a seamless pattern of the front upper part of Japanese five yen coin which is used currently.This design represents a rice with ripe golden ears.
Source Yamachem
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
Black And White Floral Pattern Background Inverse
Source GDJ
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Abstract Tiled Background Extended 10
Source GDJ
Inspired by a drawing seen in 'City of Liverpool', James Picton, 1883.
Source Firkin
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
ZeroCC tileable mossy (lichen) stone texture, edited from pixabay. CC0
Source Sojan Janso
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ