Thanking you for concern and helping the TemplateToaster team to make it better. TemplateToaster already follows the concept of Auto-Styling/Auto-Banner of the tabs, e.g TemplateToaster template have the number of tabs, the first one is the Home tab. As the user will apply any layout/style for Home tab it will be applied to all the tabs until and unless the next tab i.e
AboutUs/Contact will not be modified itself.
Once any tab's layout i.e header, menu, slider, content is designed independently, styles will be generated on the basis of their own style.
Until and unless you will not design layout i.e header/menu/slider/footer/content of AboutUs tab, home page's styles and layout will be
inherited on all tabs, once About-us/Contact/newly-generated page's layout and styles are modified the tab will have its own style generated.
Same flow is applied in case of all the E-commerce CMSes, until and Unless the user hasn't designed Description, Cart, and Checkout pages, The shop page layout will be applied. Once designed the further pages, they will own their own independently generated styles.
Your efforts for TemplateToaster will be much appreciated, You can also post you're any of the feature-request to our user voice page