1---Bugs---
2	Why doesn't drag-and-drop on the icon work the same as dropping on the
3		open view? (e.g., multiple volumes don't work; floppy isn't accepted.)
4
5---Notes---
6	Remember to change the alpha component of RGB colors to 0xff with
7		DiskProbe, if you use Resourcer.  They live in block 6.
8
9---Future/maybe/bloat---
10	Display unavailable files in a distinct color (maybe gray)?
11	Find a way to do redrawing more efficiently (BPicture?)
12	Add <- and -> buttons to traverse the zoom history.
13	Display pie in grayscale+patterns / color?
14	Display an icon somewhere while volumes are being scanned.  Check out the
15		barber shop icon in the Tracker during queries!
16	Handle the special case where the volume is full: the volume display is
17		the same as the root directory display except for the colors!
18	When scanning all volumes, scan different physical devices in parallel,
19		and multiple partitions on a device in sequence.
20	Add a cancel button during scanning?
21	A button to cycle colors?  (Useless toy).
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