When utilizing setDefaultLookAndFeelDecorated$($true$)$ for visual appeal and usability, what considerations should developers keep in mind?

a$.$ It is unnecessary to consider platform$-$specific differences in visual appearance.

b$.$ It is crucial to thoroughly test the application on different operating systems to ensure consistent behavior.

c$.$ It is advisable to override all default look and feel settings to maintain a unique visual identity.

d$.$ It is recommended to avoid using native components altogether to minimize complexity.