Thank you for your reply, foosion.
So, is the menu's commands' order likely to differ every time? It doesn't bother me; I'm just wondering.
QUOTE
Which user interface are you using?
I'm using 0.9.4b1 "as is". Currently, the playing track is bright green when highlighted and purple otherwise; with 0.9.3.1, the colours were yellow and navy respectively. I'm sure there have been different colours in the past.
Interestingly, Windows' "Deleting the shortcut to foobar2000 . . . " dialog's "Add or Remove Programs" link is now purple like 0.9.4b1's highlighted tracks; I am sure it was blue before!

I haven't altered anything, have reset the theme and colours and still can't find any way to change this within Control Panel, so I am thoroughly confused.
I hope this doesn't confuse you too much. I await your reply!