I ported your jsfiddle to run on val town! Main function: https://www.val.town/v/stevekrouse.sparklineSVG https://www.val.town/v/stevekrouse.sparklineSVG Rend

I ported your jsfiddle to run on val town! Main function: https://www.val.town/v/stevekrouse.sparklineSVG https://www.val.town/v/stevekrouse.sparklineSVG Rendered example: https://www.val.town/v/stevekrouse.sparklineEx2 https://www.val.town/v/stevekrouse.sparklineEx2