High Contrast mode for Aven?

[Imperial College Caving Club]

Dear Survex'ers,

I run Survex/Aven on an OLPC XO laptop (now running Ubuntu), and it
runs beautifully.

The only slight issue is that the aven screen is very difficult to
read in the high resolution (sunlight readable) greyscale mode of the
display.

How much difficulty would there be to hack the choice of colours for
the centreline?

I vaguely recall running a CVS version many moons ago that had more
control over the 'colour by depth'...

Might this be useful functionality for anyone else?
An option to go to pastel shades rather than fully saturated, or to
invert the whole display might be nice...

Best,

Jarv

--
Imperial College Caving Club
http://union.ic.ac.uk/rcc/caving
ic.caving [AT] gmail.com