The companionway cover on Rhapsody is also the "yellow-brown" color, almost opaque to light. I just attributed it to the original design, as I never saw one that didn't look the same. If you want more light with the hatch cover closed, consider making lexan hatch boards. I know some have wooden hatch boards that block all light. I've got lexan boards with teak trim. I'm actually replacing the pieces of cracked teak this winter and will be refinishing the old teak. A basement project for when it is freezing outside.