Different Colour For Playback Position

Ideas & suggestions
1

2298 Screen Shot EDIT 2011-08-27 at 11.30.33 PM .png
looks alright here

2301 Screen Shot 12011-08-28 at 2.34.37 AM.png
but what about when a sound is loud. can’t see them properly

2302 edit b.png

here’s a mockup suggestion. i guess it means another xml value unless an existing value is used