Feature Request: Vienna-style orchestral parts

[Amelie Zapf]

Hi folks,

once again, I'm missing a feature in Lilypond. In orchestras, it is common 
practice to mark up repeats in the parts like this to make the part more 
readable:

 /        \
/          \
||.       .||
||.       .||
||         ||
\          /
 \        /

In addition, those repeats are marked in blue, while coda and segno signs are 
marked in red. Would it be possible that Lilypond can do that for me by 
setting a Score property? I don't know how difficult that is, the layout of 
the repeat signs would have to be changed PLUS color added. Maybe in two 
steps?

                \translator {
                        \ScoreContext
                        viennaRepeats = ##t
                        colorRepeats = ##t
                }