A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Sharp pixel pattern, just like the good old days.
Source Paridhi
Prismatic Hypnotic Pattern No Background
Source GDJ
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
Original seamless pattern with an Inkscape filter.
Source Firkin
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
This background image is great for using in web design or graphic design projects. And don't forget to visit the homepage. I frequently update this resource with fresh tileable backgrounds.
Source V. Hartikainen
Prismatic Snowflakes Pattern No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin