Use opacity rather than color to distinguish active/inactive edges
Use opacity rather than color to distinguish active/inactive edges

Fixes #3

smpcole/asoiaf-vs-tac,smpcole/theoriginalgot,smpcole/theoriginalgot,smpcole/asoiaf-vs-tac,smpcole/theoriginalgot,smpcole/asoiaf-vs-tac,smpcole/theoriginalgot,smpcole/asoiaf-vs-tac