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 customtheme to your multi-device application with Delphi, C++Builder…