OMG! I can’t see a thing!

I updated to 2.7. At first I had a problem because obviously the plugin for the editor I was using tinymce or something like that, is not compatible with the new version of WP. So, I finally got be editor viewable. But I can’t see the outlines of where everything is. Where to click into to start editing, and so on. It’s very unnerving.

Is there any place in my design editors that I can darken these colors so I can see where the boundaries are? Please. Any help would be greatly appreciated.