A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A white version of the very popular linen pattern.
Source Ant Ekşiler
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Retro Circles Background 5 No Black
Source GDJ
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin