- BUG: Should not hide references if there are too many of them to classes if
referring classes are not visible anyway because of blacklist/whitelist rules.
Basically reference counting should exclude not visible classes.
+- FEATURE: integarte with [[http://plantuml.com/class-diagram][PlantUML]].
- FEATURE: add dark theme
- FEATURE: sort Class fields by alphabet
- FEATURE: visualize also concrete field values so it could be used as