The default color theme is hard to read with a dark background. The dark blue in particularly is difficult to make out.

Originally mentioned in http://code.google.com/p/js2-mode/wiki/Discussion

It appears that adding more class colors for dark backgrounds causes things to default to a more readable set.

The patch does just that and provides the framework for anyone who wants to tweak things. Obviously there must have been a more direct solution but I do not see any harm in this approach.

Actually this was fixed with the removal of some deffaces several commits ago. This patch is thus only useful if future customization is desired.