Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
The image depicts a pattern of regular hexagon.As I made to use it for myself,I want to others to use it.Speaking about the ratio of the image, height : width = 2 : √3(1.732...)Ridiculous to say,I realized later that this image is not honey comb pattern.I have to slide the second row.
Source Yamachem
The original has been presented as black on transparent and stored in the pattern definitions. To retrieve the unit tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Pattern formed from simple shapes. Black version.
Source Firkin
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
A seamless textured paper for backgrounds. Colored in pale orange hues.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel