Given the following puml, how can I alter the artifact color "C", the color of the circle, the background color of the circle, and the font of "C"?
class Server < modules > {
- __private: {}
- self: this
-- Methods --
+ Server (cb, scope)
+ sandboxApi (call, args, cb)
+ onBind (scope)
+ onBlockchainReady ()
+ cleanup (cb)
+ isLoaded ()
+ areModulesReady ()
}