Suggestion for hgweb graph

[Nikolaj Sjujskij]

>> I have a modification I use to the hgweb graph which adds a dotted  
>> horizontal line from the commit vertex to the text. I find this a lot  
>> easier to link the text to the vertex with this modification,  
>> especially when there are several branches visible on the graph.
> The idea is good branchy graph are hard to follow !
> What about using css property to have the line you suggest only show  
> around the mouse ?
I don't like using mouse much, and so do many others hardcore keyboard  
users (vimperator and others aren't that unpopular).

Isaac have proposed that this should be an option, so maybe:

[web]
dottedlinesongraphbetweennodeanddescription = on / hover / off

Option name should inspire everybody to suggest a better one :)