Diamond pattern (colour 3) #2283
Green CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More Textures
White Diamond@2X #367
Diamond CC BY-SA 3.0To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
Floral background 10 #2046
Yellow CC 0Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
Decorative divider 224 #2206
Dark CC 0Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
Dark Metallic Background Pattern #1088
Metal CC BY-SA 3.0A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
Spiral pattern 3 #1934
Dark CC 0From a drawing in 'Danmarks Riges Historie af J. Steenstrup, Kr. Erslev, A. Heise, V. Mollerup, J. A. Fridericia, E. Holm, A. D. Jørgensen', 1897.
Source Firkin
Page ornament 29 #2307
Red CC 0From a drawing in 'Az Osztrák-Magyar Monarchia irásban és képben', 1885.
Source Firkin
Fabric pattern (colour 4) #2399
Fabric CC 0Alternative colour scheme. 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
Graphy #350
Grid CC BY-SA 3.0Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Background pattern 228 #2308
Colorful CC 0Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
White Diamond #366
Diamond CC BY-SA 3.0To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
Wood Web Background #870
Wood CC BY-SA 3.0Here's a tile-able wood background image for use in web design.
Source V. Hartikainen