That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Zero CC tileable hard cover cells, skin like, book texture. 4K, Scanned and made by me CC0
Source Sojan Janso
This is a hot one. Small, sharp and unique.
Source GraphicsWall
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
The image depicts a Japanese Edo pattern called "kanoko or 鹿の子" meaning "fawn" which has a fur with small white spots.
Source Yamachem
Prismatic Groovy Concentric Background 5
Source GDJ
The image is a seamless pattern of a fishnet.
Source Yamachem
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
8 by 8 pixels, and just what the title says.
Source pixilated
A seamlessly tile-able grunge background image.
Source V. Hartikainen
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Classic 45-degree pattern, light version.
Source Luke McDonald
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman