We use a few methods to link nameplates with GUIDs.

• When user targets a mob, their nameplate stands out from the rest. We find the nameplate that stands out to find the GUID.
• When user mouseover a nameplate, it lights up. We detect which nameplate is highlighted to get GUID.
• When check for raid icons on nameplates and link it to group targets that match the raid icon.
• When a nameplate appears on screen, We match the current & max HP to group targets.
• When a nameplate's HP changes, we match the current & max HP to group targets.

Note to Aloft users: Aloft has a option to disable mouse on nameplates. This prevents nameplates from lighting up which LibNP needs to detect which nameplate the user is mousing over.