I think definately that Yellow is nice but also red,green and the blue. Generic of course will be plain (as is) with no colour change.

I'd going for Yellow=subitle Green=playlist , maybe this time the Blue= video and then that Red=audio
viewtopic.php?f=7&t=35494&start=420#p202653
The VLC cone remains the original orange and shows up nicely against these other colours, which is just perfect because I know changing the colour of the cone was not popular. I should be sure to darken each symbol to a dark grey/blackish so that each symbol shows up better against the colours as in the preview above.
[EDIT]
OK maybe no 'VLC' text for the Generic icon since the applications supports a same extension called VLC and in wanting to avoid confusion.