Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Prismatic Hypnotic Pattern No Background
Source GDJ
A free seamless background pattern for use on websites.
Source V. Hartikainen
Prismatic Snowflakes Pattern No Background
Source GDJ
Prismatic Geometric Pattern Background 2
Source GDJ
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
A chequerboard pattern with a fruit theme. The fruits are from a posting by inkscapeforum.it.
Source Firkin
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
A seamlessly tileable pink background texture.
Source V. Hartikainen
A new take on the black linen pattern. Softer this time.
Source Atle Mo
The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin