I want to color my Guide Gear 12x12 tarp. I found permenant magic marker seems to work pretty well on it (at least black as that is what i tried on one corner). Where would i find a pattern or is there one for DIY camo? I have some digital camo cloth, i guess i could try to go by that, but figured there may be a pattern somewhere. I am thinking about using the Black and Green markers, not sure if i can find Brown. I figure those 3 colors should make a fairly nice camo color. Any other suggestions?