Awhile back I described the idea of bond artifacts, which are layered on top of a core cheminformatics representation to give the rendering engine the hints it needs to make the visual diagram look like what chemists want to see (without breaking the underlying machine readability). Now this enhancement has been added to the open source WebMolKit framework and the derived SketchEl2 drawing app. Furthermore, the artifacts can survive a round trip encoding with the industry standard Molfile CTAB format. Continue reading →