As Information for other People searching the scatter plot here is the path, when you download the zip file.
PowerBI-visuals-core-master\src\Clients\Visuals\cartesian
PowerBI-visuals-core-master\src\Clients\Visuals\capabilities
PowerBI-visuals-core-master\src\Clients\Visuals\behaviours
For sure it is not the same structure like the new visual projects. But you can find some useful information in the typescript files.
