Dark Wall #817
Dark CC BY-SA 3.0Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
More Textures
"Seamless Bark", Website Background. #879
Wood CC BY-SA 3.0This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Warped Stripes on Paper #1073
Paper CC BY-SA 3.0A seamless background of warped stripes on paper.
Source V. Hartikainen
Decorative divider 238 #2088
Dark CC 0From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Light Toast #759
Paper CC BY-SA 3.0Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
Use Your Illusion@2X #918
Dark CC BY-SA 3.0A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Tex2res5@2X #726
Fabric CC BY-SA 3.0Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Simple bump #172
Dark CC 0A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH
Tree Bark #1182
Light CC BY-SA 3.0This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Decorative divider 224 #2206
Dark CC 0Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
“Transparent” Background Pattern@2X #494
Light CC 0An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
Green Background Pattern with Warped Vertical Stripes #1328
Green CC BY-SA 3.0Green Background Pattern
Source V. Hartikainen
Stitched Wool@2X #844
Light CC BY-SA 3.0I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Office@2X #958
Dark CC BY-SA 3.0I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Background pattern 223 (colour 3) #2351
Green CC 0Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Solid@2X #846
Gray CC BY-SA 3.0A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Snowflake pattern remix #156
Dark CC 0The base gradient edited so now more details are rendered.
Source Lazur URH
Fabric Pattern with Stitch Holes #1163
Fabric CC BY-SA 3.0A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
Background pattern 334 (colour 2) #1731
Yellow CC 0Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Diagonal Waves #1006
Gray CC BY-SA 3.0It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Debut Dark@2X #1015
Dark CC BY-SA 3.0Same classic 45-degree pattern, dark version.
Source Luke McDonald
Zodiac sign symbol background #1927
Red CC 0Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin