The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861
Source Firkin
Green Background Pattern
Source V. Hartikainen
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
A seamless texture of a rough concrete surface.
Source V. Hartikainen
A background pattern with a look of rough fabric.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Abstract Geometric Background 5
Source GDJ
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
A seamless pattern of leopard skin. It should look nice as a background element on web pages.
Source V. Hartikainen
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
White circles connecting on a light gray background.
Source Mark Collins
A bit of scratched up grayness. Always good.
Source Dmitry
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH