It can do that, then!

This power seems to have synergy with their dangersense, actually. Which probably makes sense if you think about it.

The power provides the sure feeling that nothing she is currently doing is detectable with orange light outside this solar system.

Yeah she was kind of expecting it to do so.  What's the merger look like?

Like a yellow spark. Duh.

The merged power seems like a personal dangersense based around how noticeable her actions are. Kind of like a video-game stealth meter if it felt like an extra sense and also it applied across different sensory modalities with different scales.

Ooh.  Neat, she'll definitely want to remember this one - but she's going to split it back out now.

Right.  Anyway.  Where was she?

Orange.  Orange and Indigo.

She can supply the Orange for this, she's pretty sure.  She really wants this to work, dammit, it's her magic light powers and they'll do what she wants them to do --

She can supply the Indigo, as she thinks about all the people that need help, as she thinks about all the people this could save--

And she can supply the artistic direction.

An indigo lens, much like the one on a magic 8 ball except perhaps a bit larger, looking in on a spark of indigo that is fixed to the center of the piece - but one that, when confronted with a sincere desire to help, will be tugged away from the center point, pointing in the direction of the nearest people who need help that the wielder can provide.

Or so they hope and believe it will do.

It takes a good deal of concentration, both on the structure of the lights and the requisite emotions, but after enough fiddling they are able to get it to work. The first attempt sticks, but then fizzles out a moment later.

Eventually, they have an indigo lens containing a trapped spark of indigo light that, when held, points directly at their center of mass.

...Well that's disconcerting.

If Wonder Woman is closer than her to the device, does that change?

Yes, actually. If Wonder Woman is closer to the device, it points at Wonder Woman.

"...O-kay.  Closest-person detector - or so we think we have here: Not what we were trying to make, but still further than we were really expecting to get on a foundation of absolutely zero practical experience with Lightwork."

"Probably still not entirely un-useful when combined with drone searches."

"Probably needs more structure than we know how to provide, magically speaking.  Or however Green Lanterns work.  They're allegedly only sufficiently advanced technology, but I do have reason to believe that the Red rings are magic."

"Right.  Anyway.  I don't doubt somebody has reference material, but I doubt that it's here, which means shelving this for until I have better ideas.

"...Although that might just mean I need to shuffle around a couple things."

She can drop the "Am I Making Cosmic-Scale Noise" meter, in favor of peak-human Light Symbology Intuition, perhaps?

Yes, it can do that!

The colors' associated symbols are symbols, in the sense that they are given meaning by the perception of people, but the connection also goes the other way — they're not completely arbitrary, either.

The Green symbol is a lot more ... rich? Well-defined? Full of secondary meaning? than the others. Whether that's something the guardians did to it to enable creating Green Lantern rings, or something that the existence of an organization using that symbol that would be known across the universe naturally results in is hard to say.

Peak-human light symbology intuition is actually not that much additional information to work with. When applied to their design problem, it does suggest that the behavior is probably not a failure of symbology, exactly, so much as Compassion spilling unrestrained beyond what she was trying to limit it to, as is its nature.

Ah.  So what it needs is not so much restraint as a sharper focus.  Or perhaps sufficient concern.  She thinks they can do that.

Though she's not going to try to hot-patch that in to this version.  "...Right.  Let's try this again with a different theory of relevant cross-spectrum interactions..."

Simply put, beyond the Orange she thinks is vaguely necessary to get it to stay put, in lieu of better ideas, and the genuine care for others requisite in calling up the central spark of compassion at all, she has two different possible approaches she's thought of, and one of them is more suited for her.

You see, she's really rather worried that if this device doesn't work properly, somebody will end up hurt.  Or worse, lost.  She's worried she'll miss someone who urgently needs help because, to misappropriate an analogy from somewhere else, Scion was once told to help cats out of trees.  It's a terrifying thought, to hold lives in your hands.  And she's willing to pour all of that into another go before they try with Diana's "I bet Superman would have better luck doing it like this" green-blue/indigo approach.

Compassion and Fear are not perfectly balanced. Fear is ... tempered, in a way that Compassion is not.

But a perfectly balanced wheel does not move, and a lopsided one does.

With the power of compassion to reach out, the power of fear to prioritize, and the power of greed to make this a thing that will stay that they can have ...

This attempt results in a purple spark that judders and jerks, sweeping that way and this, surrounded by a diffuse yellow aura of fear. But when they pick it up, the spark stills, straightening out into a line pointing down through the floor and slightly to the left.

Also, because the universe loves its little jokes, that's when the emergency alarms go off.

Wonder Woman is on her feet almost too fast to see.

"Stay here!" she commands, running out of the room to check on the source of the alarm.

A distant rumble and hiss echos through the foundations of the building.

"Shitfuck."

"If this is right I can help."

And she - she can't leave this alone.  What if it's something she did?

But that doesn't, actually, mean that she has to leave the room.

Gift, drop the Light-symbology-intuition for right now; can she get a third-person camera with noclip enabled some sort of visual projection power?

...Oh no you do not go throwing our vision out of our body when we don't even have a defensive artifact --

The somewhat-panicky materialization of a handheld shield, with a pattern of three concentric rings (blue, green, blue again) about a five-pointed star inscribed in a central circle, (green and white), is perhaps less surprising to their reflexes than it should have been, given that they have technically never before handled such an object in their life.