"No focus rectangle for the active item. I really don't care, if this can be achieved using some formatting code; I don't want to have to read through the documentation to get something as simple as that."
For the ones wishing to achieve this for the time being, till something simplier is put in, just use the following code.
$if(%isplaying%,$drawrect(0,0,0,0,brushcolor-113-122-134 pencolor-255-255-255),)
I like the drawrect syntax.
Could use it later (or now, havn't messed with it enough to see) to help display when a song is missing a certain tag field, display hotness, rating, etc.
Edit: Er, maybe a bug. When useing that coding I supplied, it leaves the focus rectangle after the song is done or changed to another. Only way to get rid of it (as far as I can tell) is by selecting and then deselecting it.
Edit2: 
Something I whipped up real fast.
$if(%isplaying%,$drawrect(6,0,21,0,brushcolor-113-122-134 pencolor-255-255-255),$drawrect(0,0,0,0,brushcolor-null pencolor-null))
$if(%isplaying%,$drawrect(235,0,45,0,brushcolor-113-122-134 pencolor-255-255-255),$drawrect(0,0,0,0,brushcolor-null pencolor-null))
$padding(10,0)
$font(ocr a extended,7,,255-255-255)
$align(left,center)%tracknumber%$align(right,center)$font(dicotmedium,7,,241-241-243)%title% $pad_right($font(gulimche,6,,241-241-243){$font(ge inspira small caps,7,,241-241-243)%length%$font(gulimche,5,,241-241-243)'}',10)