The tree maps showing components (e.g. ordered by size, colored by rules violations) show the full-qualified package names of the components/modules/packages.
When there are a lot of packages, the name becomes unreadable and the packages become indistinguishable. The situation cannot be solved completely, but it can be improved a little. For example by removing the commonly shared prefix or calculating the difference in names between packages, only a smaller part of a package name could be displayed.