What do the numbers on the Dependency Graphs mean
The numbers on the dependency graph indicate how many dependency references there are to or from that entity. In the example below there are three places that timer.c depends on regexp.c. The red line indicates that there are circular dependencies. So regexp.c has 21 dependencies on try.c and try.c has 9 dependencies on regexp.c.
You can see what those dependencies are by right clicking on a node and selecting “View Dependencies”. For example below you can see what 4 lines in timer.c are actually accessing timer regexp.c.