Retro Squares Background 2@2X #417
 Noise  CC 0

Retro Squares Background 2

Source GDJ

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Prismatic Groovy Concentric Background 2@2X #454
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Prismatic Groovy Concentric Background 2

Source GDJ

White carbon@2X #12
 Carbon  CC BY-SA 3.0

Same as the black version, but now in shades of gray. Very subtle and fine grained.

Source Atle Mo

Prismatic Geometric Pattern Background 2 #409
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Prismatic Geometric Pattern Background 2

Source GDJ

Bright Multicolored Floral Background@2X #560
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Bright Multicolored Floral Background by Karen Arnold from PDP.

Source GDJ

crissXcross #111
 Dark  CC BY-SA 3.0

Dark pattern with some nice diagonal stitched lines crossing over.

Source Ashton