Playlist Font:
Set as "Small Fonts", which looks rubbish above size 9.
Change font size to 9 in Options, Preferences, Playlist, Playlist Editor Appearance, Playlist Font Size.
[Also you can do this by selecting the playlist window, pressing 'Ctrl' & Numberpad '+' or '-']
You can also change to whatever font you want to use by dechecking "Use Skin or Language Pack Font"
Changes to V2:
Changed Selected Playlist line to red [from green]
Changed extra windows to general red colour scheme.
Fixed the media library to be correct colours, looks pretty good now, and very usable.
Comments welcome, I might incoporate requests into V3!
Very simple, and if people have to change settings to use it (font), many won't.