Area Chart with Pattern Fills
just to see what these look like; also, worth noting the colors are baked into the (compiled?) svg patterns; alternate colors could be created separately as needed
circles-1
circles-2
circles-3
circles-4
circles-5
circles-6
circles-7
circles-8
circles-9
diagonal-stripe-1
diagonal-stripe-2
diagonal-stripe-3
diagonal-stripe-4
diagonal-stripe-5
diagonal-stripe-6
dots-1
dots-2
dots-3
dots-4
dots-5
dots-6
dots-7
dots-8
dots-9
horizontal-stripe-1
horizontal-stripe-2
horizontal-stripe-3
horizontal-stripe-4
horizontal-stripe-5
horizontal-stripe-6
horizontal-stripe-7
horizontal-stripe-8
horizontal-stripe-9
vertical-stripe-1
vertical-stripe-2
vertical-stripe-3
vertical-stripe-4
vertical-stripe-5
vertical-stripe-6
vertical-stripe-7
vertical-stripe-8
vertical-stripe-9
crosshatch
houndstooth
lightstripe
smalldot
subtle-patch
verticalstripe
whitecarbon
Fill it
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