tack.pics: Pin Coordinates Onto Any Image

What started as a Saturday-afternoon utility for placing collision shapes on&#xA;a sprite turned into &#xA;&#xA; &#xA;&#x9;&#x9;tack.pics&#xA;&#x9; &#xA; &#xA; — a small, free,&#xA;browser-based tool for marking points and polygon regions on images and&#xA;exporting them as JSON or YAML. Drop in an image, click out the coordinates,&#xA;drag bezier curves where you need them, and copy the data…