I've taken a quick look at Vectornator fairly recently and found whilst it does have a clean interface and a good solid feel to it, being relatively new it didn't have the depth of options a well established graphics program like P&GD or AD has.

To be honest I wasn't curious enough to give it a fair trial and didn't run through any of the tutorials. Having said that I don't think at this stage of its development journey it will have too much impact on mainstream graphic designers. Maybe one to watch out for in the future.

Below is a screen shot (running on a Mac). It does also have a dark interface option.

Click image for larger version.  Name: screenshot of vectornator running on mac.jpg  Views: 97  Size: 151.2 KB  ID: 133846

My alternative graphics solution at the moment is VectorStyler (available for Mac and PC, but not iPad), which is chock-full of useful drawing and design tools, but also has quite a learning curve. For me it bridges the gaps between Xara P&GD and Affinity Designer (which is evolving nicely), particularly with things like blends and variable stroke widths etc.