The 
		
Resources window 
		
> Properties tab 
		
> Marker Settings > Look drop-down list let you change the shape, size, and color of any Marker. See the Rig Look option in the 
		
Edit Menu to learn the entire Control Rig appearance using three built-in presets. 
		
Note:  If you use the Sphere or the Capsule look for a marker, scaling the marker changes the Size and Length properties instead using the real Scaling property. This scaling behavior can affect hierarchies under theses markers. If you do not want this behavior, set the Application.txt file [Markers] area 
		  LegacyScalingBehavior setting to 
		  No to use a unified scaling method instead.
		
	  
To change the appearance of IK or FK effectors, see 
		Changing the Look of FK or IK Effectors.