I am really lost. Maybe I am missing something too basic to be able to understand. So I'll ask one question:

Can someone indicate one clear and SIMPLE edit to make in the stylesheet and the stylesheet_color_splits to make sure I have things all in place and I would be editing the correct files to see SOMETHING changing from the "default" stylesheets that came with this plugin?

Maybe I have been looking at the wrong place for the last few hours?