Background pattern black #2028
Dark CC 0Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More Textures
Carpet seamless texture 3 #2553
Wall CC 0From an image on opengameart.org shared by rubberduck.
Source Firkin
Ocean decorative divider #1904
Dark CC 0Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Large Leather@2X #650
Paper CC BY-SA 3.0More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Background pattern 309 #1866
Yellow CC 0Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Background pattern 225 #2327
Colorful CC 0Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Yellow Wood Planks Background #876
Wood CC BY-SA 3.0This background pattern contains a texture of yellow wood planks. I think it looks quite original.
Source V. Hartikainen
Dark Sharp Edges #1320
Dark CC BY-SA 3.0Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
Thick Textured Brown Paper #1070
Paper CC BY-SA 3.0A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
Leafy pattern 11 #1765
Dark CC 0From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Blue Stripes Pattern #969
Stripes CC BY-SA 3.0A textured blue background pattern with vertical stripes.
Source V. Hartikainen
Background pattern 323 #1807
Red CC 0Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Floral divider 6 #1748
Dark CC 0From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Background pattern 306 (colour 6) #1878
Colorful CC 0Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Wavy background #2019
Colorful CC 0CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Diamond pattern (colour 8) #2273
Red CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background pattern 223 (colour 5) #2349
Blue CC 0Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Snowflakes Pattern No Background@2X #783
Light CC 0Prismatic Snowflakes Pattern No Background
Source GDJ
Nami@2X #576
Dark CC BY-SA 3.0Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Rebel@2X #830
Dark CC BY-SA 3.0Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Wall #1248
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Background pattern 3 #222
Noise CC 0A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin