A new window that allows you to choose a color appears when you click one of the color controls. Keep in mind that this window is a feature of the web browser, and that each browser will have a different interface and settings. You are brought back to the list of websites when you click Cancel. The website's Interior Pages configuration is saved by clicking Save, and the page reloads on the same screen with a success message. Your updated values are already entered into every field. Verify that any modifications you saved appear on the front-end composite site.