Start with a black background
	Using the pencil draw 2 lines like this 4 pixels long 1 pixel wide in mid grey
	select this small box and goto Edit/define pattern, then delete the lines
	Now goto Layer/new fill layer/pattern, and select your newly defined pattern, you should get this.
	Apply the gaussian noise filter at around 27, make sure monochromatic is ticked
	Thats basically it, just airbrush a few holes in with one of the nature brushes and its ready to fit into an interface.

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