2009/4/22 Vladimir Savic <firstname.lastname@example.org>
Here are simple (speedy) mockups of changes. You might notice my idea
for segment switching (which is nothing more but scratch).
Note that every background segment has the same color. If implemented,
segment switcher can easily solve this. Well, I wrongly call it
segment switcher, because it just switches background (reference
segment visibility), not the active one.