I often have to deal with two similar directory trees.
A frequent case, I might have 2 copies of the same repo.
C:\src\my_project_1\src\foo.java
C:\src\my_project_2\src\foo.java
#1: Color the doc tab based on the path:
Duplicate filenames
If two or more buffers are loaded with the same filename "foo.java".
Sort them by path. The first get the default tab color, and each of the others
gets a different color.
Different paths
When there is more than 1 document tab with buffers of assorted paths
The active tab defines the primary color path
All tabs with buffers in the same path share this color.
All other tabs get a different color
Ideally, the amount of color difference would be related to how different the paths are :-)
#2: if the current buffer is C:\src\my_project_1\src\foo.java,
Somehow Slick should be able to find the "twin" file in "C:\src\my_project_2\src\foo.java"
