Expand the number of component libraries to include a large variety of different images/icons. Here are the two I vote for (users please reply and add your own recommendations):
cloud systems design w/ generic and specific icons for AWS, GCP, Azure
network design w/ generic and specific icons for Cisco, etc.
Good to know, the custom components however was the “bonus” part of the initial post. The inclusion of a stock library of common system, network and database design components is not however addressed.