Best practice for showing icon on service calls.

Hello,

Needed some opinion on loading the status icon based on the properties current state.

Is it performance efficient to load the status icon as part of the service output or create a state definition and only out put the value from the service and the icon is decided by the state definition.

My thinking is that the state definition is loaded once on launch and icon is rendered based on the value, instead of loading the icon as a service output on every call.

Thank you!