How can I list LS_COLORS in colour?

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http://unix.stackexchange.com – I recall that eval "dircolors -b" used to display the colours that LS_COLORS was using, based on the file types or extensions. It was not simply the colour values that were displayed but the colours themselves. I could see the colour in which a .png or .ogg file would be displayed and change it if needed through a custom file. I find that the output of eval "dircolors -b" is no more in colour. Can someone kindly explain how I might get it back? Perhaps some environment variable is not getting set. Otherwise, is there a workaround? Many thanks. (HowTos)