A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
Abstract Ellipses Background Grayscale
Source GDJ
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin