Checkered Light Emboss #280
Grid CC BY-SA 3.0Sort of like the Photoshop transparent background, but better!
Source Alex Parker
More Textures
Background pattern 201 (colour 4) #2494
Grid CC 0A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Dark #1258
Paper CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Background pattern 314 #1839
Yellow CC 0The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Floral background #1973
Dark CC 0Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Fabric pattern #2402
Fabric CC 0Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Light Gray #1203
Gray CC BY-SA 3.0Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Background pattern 232 #2297
Dark CC 0Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
Pinstriped Suit #665
Dark CC BY-SA 3.0Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Prismatic Polka Dots 3 No Background #528
Noise CC 0Prismatic Polka Dots 3 No Background
Source GDJ