It’s very easy to customize your user interface using FireMonkey styles in RAD Studio 10.3. We’ve added all of the premium styles to GetIt (Tools > GetIt Package Manager > Styles) in 10.3. This includes both VCL Windows and FMX multi-device themes.
Ready to customize your own UI? Below are the steps for adding a custom theme to your multi-device application with Delphi, C++Builder and RAD Studio 10.3 Rio.
To learn more about 10.3 Rio, visit www.embarcadero.com.
Not sure but unlikely as it says Premium Styles. If you cannot see them in Getit then they are not available in CE
is it available for CE user?