There are a few open source tools around that do bitmap -> vector tracing, for instance potrace which is the engine used by Inkscape and also has available python bindings (pypotrace). But sometimes, ...

Long press and drag to move the toolbar around. After 3 seconds of inactivity, the toolbar becomes 50% transparent. Turn on Clear on hiding canvas to let the app clear the canvas when you hide it.

What started out as as trend in Asia has spread in a big way to Europe, the U.S. and the rest of the world. Microdramas became all the rave last year and the global market is expected to make billions ...