In the IDE you can customize the highlighting scheme used for different language bindings.
The UI for doing this can be found in
Options-->Text Editor-->Highlighting and it looks like this:
You can have one custom scheme per language binding. When you first create them they are saved to
%appdata%\SoftVelocity\Clarion\10.0\modes or, if you are starting your IDE with the /configdir switch then you should know where to locate that same
If you have one you would like to share please reply to this topic and attach it! (or create a GIST or whatever your preferred code sharing method it of course).