MPLAB Harmony Graphics Suite display manager for the Legato graphics library is used to tune the display timing interface between the controller and the display. The use of the display manager allows the user to visually inspect the timing and save setting for subsequent code generation. 

The MHGC display manager for Legato is launched from the MPLAB Harmony Configurator (MHC) Tools menu as long as the GFX Core LE component is in the project graph as shown below: