Profiler marker usage flags.
| Default | Default value for markers created in native code. | 
| Script | Marker is created by scripting code. | 
| ScriptInvoke | Specifies that marker is generated by invocation of scripting method from native code. | 
| ScriptDeepProfiler | Specifies that marker is generated by deep profiling. | 
| AvailabilityEditor | Specifies that marker is present only in the Editor. | 
| Warning | Specifies that marker highlights performance suboptimal behavior. | 
| Counter | Marker represents a counter. | 
| SampleGPU | Specifies that marker is capable of capturing GPU timings. |