Function highlightNpcOn

highlightNpcOn(
    npcId: number,
    npcCreationCycle: number,
    highlightChannel: number,
): void
Highlights the specified NPC. If the npc has already been highlighted with other channel ids, the channel with the smallest id that is also enabled will be the channel through which the highlight gets its properties from.
Parameters
- npcId: number
  The id of the npc to highlight. Integer.
- npcCreationCycle: number
  Server cycle that this NPC was created on - obtained by ClientOp.npcCreationCycle. Integer.
- highlightChannel: number
  The channel of the highlight category to use [1-32]. If specified channel is not enabled the highlight will not be visible. Positive Integer.
Returns void
Example
```
-- Highlights Brugsen Bursen
id = osrs.ClientOp.getNpcIdByName("Brugsen Bursen")
osrs.ClientOp.highlightNpcOn(id, osrs.ClientOp.npcCreationCycle(id), 6)
```
- Defined in clientop.d.ts:439