Simple aura for the Broodkeeper's Promise trinket.
If in a party or raid, will show a red glow around the aura icon until you apply it to a party/raid member. Only works if you manually target the player to use your trinket on, but you can configure it to use mouse-over instead of target if you change Condition 4's custom code.
Once applied, it becomes de-saturated if you move out of range of the trinket range conditional (15 yards).
Should start glowing red again if your promise target dies or you lose the buff for any other reason.