In chapter 2, I learned how to make a window that would flash specified colors of my choice every second. Instead of running properly, all I saw was a blank window. I compared the solutions code to mine and ran the solution, but it didn't work. I asked my mentor for help, and I asked the Teencoder company for help. They said to change the interval to something other then 1.0s and that worked! The only difference is that the colors flash every 2 seconds instead of 1 second.