> Can't make out the difference between the purple coloured tiles. Color-blindness? If you're actually wondering, here's a pretty good test: http://enchroma.c

> Can't make out the difference between the purple coloured tiles. Color-blindness? If you're actually wondering, here's a pretty good test: http://enchroma.com/test/instructions/ http://enchroma.com/test/instructions/ That site is trying to sell you something, but my results there are consistent with others, e.g. http://colorvisiontesting.com/ishihara.htm http://colorvisiontesting.com/ishihara.htm