An icon is a symbol equally incomprehensible in all human languages An icon is a symbol equally incomprehensible in all human languages. There's a reason why humans invented phonetic languages. Jef Raskin, Steve Jobs iconographysymbols
Better colormaps? An Article by Mark Liberman languagelog.ldc.upenn.edu A modest sample of alternative ways of coloring the same type of 2-D density plots of rates of F0 change and amplitude change. colorvisualization