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Actually, if you're talking about having set syntax colors through the Editor > Syntax Coloring preference group, the configuration is stored in the file preferences in your settings directory (location varies; it is listed in Wing's About box) and you can create a .stx file as described in https://wingware.com/doc/custom/syntax
The other answer is for selecting colors for the UI as a whole.
If you're willing to share what you come up with, please submit a pull request for https://bitbucket.org/sdeibel/wing-contrib/src/default/