The best way of handling this would be to create a counter, each time an element was changed to the correct color you would increment the counter.  Once all the elements change color the counter would reach a certain value.   You would then add an action set to each element which would be a "Show-Main Element" action set with a condition set to a specific counter value.  This way no matter what order the elements were displayed in, it would show the main element as long as the counter reached the correct value.

When you put together the Drag-DrawFree action set, the builder shows a "Line Color" field and a "Line Width" field in the behavior settings below the name of the behavior, so you can select any color and line width that will appear when the user drags a finger on that element.

Hi Melissa, the navigation images are showing for me as they should. As for page effect you can select it as in the example bellow:

Based on our emails back and forth it seems that your app never successfully uploaded so the 404 means that it cannot find the app.   My suggestion is to try this from a faster internet connection.  177MB is not too heavy for an app, but it is heavy if you don't have a reliable and fast internet connection.