Pattern format, choose from these patterns.:

bricks checkerboard circles crosshatch30 crosshatch45 crosshatch fishscales gray0 gray100 gray10 gray15 gray20 gray25 gray30 gray35 gray40 gray45

gray50 gray55 gray5 gray60 gray65 gray70 gray75 gray80 gray85 gray90 gray95 hexagons horizontal horizontalsaw hs_bdiagonal hs_cross

hs_diagcross hs_fdiagonal hs_horizontal hs_vertical left30 left45 leftshingle octagons right30 right45 rightshingle smallfishscales verticalbricks verticalleftshingle vertical verticalrightshingle verticalsaw