Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
Source Firkin
Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Remixed from an image that was uploaded to Pixabay by KirstenStar
Source Firkin
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Retro Circles Background 4 No Black
Source GDJ
Seamless Prismatic Geometric Pattern With Background
Source GDJ
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
The image depicts a seamless pattern which includes hexagonally-aligned gourds with BG in light-brown.
Source Yamachem
Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. CC0
Source Sojan Janso
The base gradient edited so now more details are rendered.
Source Lazur URH
Prismatic Abstract Background Design
Source GDJ
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin