permitted. Note that, given current numeric motif of PW, this is done in four equally-sized commits of 393 files each.
It displays a part of a motor. The faster your X server is, the more rpm you get ;-) Guess how many rpm's I got, when I started with X11 years ago .... 32 rpm with an ET4000 VGA card on a 386 4MB running Interactive Unix ;-))