DelphiStyles.comsells custom VCL and FireMonkey Styles. They are offering a free custom VCL Windows Style for RAD Studio 10.2 Tokyo customers through the GetIt Package Manager (Tools > GetIt Package Manager).
After downloading the style, you can find it under C:UsersYourUsernameDocumentsEmbarcaderoStudio19.0CatalogRepositoryAquaLightSlate2-1.0
Select the .vsf file and copy it into…