Esc	quit
`	Cycle through coloring modes
1,2,3,4	Select camera 1,2,3,4
d	Reset drawing to new root
D	Change drawing mode (toggles between treemap and 3D tree)
g	Toggle reference grid (xyz axes and grid)
o	Open selection in operating system
p	Print current hierarchy to stdout
r	Reset camera to default position
R	Randomize colors
s	Set the current camera position as the new default
S	Toggle status overlay
z/Z	Zoom in and out`
-	Decrease base radius in 3d tree mode
=	Increase base radius in 3d tree mode
[	Decrease scale factor in 3d tree mode
]	Increase scale factor in 3d tree mode
Up	Previous selection
Down	Next selection
Left	Select parent
Right	Select child
Meta-Up	Move selected camera forward
Meta-Down	Move selected camera backward
Meta-Left	Move selected camera left
Meta-Right	Move selected camera right
Shift-Up	Move selected camera up
Shift-Down	Move selected camera down