lost ability to edit or insert engage interactions

In the process of customizing the color scheme in the engage screens, I have done something that has caused me to not be able to insert or edit other engage interactions. When I click on Engage Interaction to insert a new interaction, I get the  quiz menu and the engage menu (where you choose tabs, pyramid, or whatever) is not available. Has this happened to anyone else? I cannot even create a new presentation. I has affected everything. Any advice on how to fix this would be appreciated!