Summary of newer pretty pictures work:
		fix - means values are rescaled from 0 to 100, rather than
			negative whatever to positive whatever
		  and is done with fixx.g
		log - means all values are replaced by their log values
		  and is done with logv.g
		darker - means brightness/contrast are adjusted on result
		in general, the procedure is to bring in the 10-20 sections
			of moment maps, and to adjust levels to include only
			actual data values, then adjust curves sort of in a
			log-like manner, trying to minimise the effects of
			the noise/stripes, then just set all layers at
			'screen', and hope for the best!
		  though it is less "true/authentic", most times it looks
			better to do 'fix' first, then do 'log', though the
			scaling is questionable, for sure.
	/GASSpretty2/
		GASS_v_6_log_fix_ok.jpg - see above
		GASS_v_6_log_fix_ok(darker).jpg - see above
		GASS_v_6_log_fix_notbad.jpg - just a different curves/levels
		GASS_v_6_log_fix_notbad_dark.jpg - duh
	/GASSprettyms/ - only magellanic stream area, ~200x600px?
		ms_v_10_layers_no_pm50.jpg - 10 layers, no +/- 50 km/s (and
			no colors from it, so no greenish/blueish around
			local gas...)
		ms_v_20_fix_log_layers_ok.jpg - 10 layers, with local gas
		ms_v_20_fix_log_layers_ok_darker.jpg - better looking, above
		ms_v_20_fix_log_layers_scale.jpg - scale for these...
		ms_v_6_fix_log_layers_basic.jpg - 6 layer RYGCBM version
	/GASSprettyms/ms800/ - bigger version, 300x800px ?
		ms800_10_fix_log_layers_ok.jpg - 10 layers, with local gas,
			not great, kind of too much local gas