Ability to configure colors

[julcnx]

It would be great to be able to provide an array of custom colors to the annotator component properties.

I have a use case where users can pre-define a custom list of class names and colors. Right now I can only provide the list of names via regionClsList, but colors cannot be provided since they are hardcoded in colors.js

If you are aware of a workaround please let me know. Much appreciated!