Make dynamic lighting shadows less black

Maybe I'm missing something (and this is not hugely important), but is there anyway to make the shadows cast by dynamic lighting to be less opaque?  And to a lesser extent, can the the outlines of the shadows be dithered or blended a bit so it's not such  a sharp line? Thanks
The Aaron
API Scripter
There isn't a way to do this currently.  There are a few suggestions in the Suggestions & Ideas thread.