Unfortunately, what I learned from using this FO is limited. I've used up my stash of it and the supplier went out of business. But I can, as you say, use more white or not scent the accent color(s).
The FO was Frankincense and Myrrh from Missy's Candles. Smells great! Too bad she went out of business. I do have a FO bottle of Three Wiseman staring at me (from Candora - a Canadian supplier). I have no idea how it will behave and I HATE to do experiments! I should use that one pretty soon since Christmas is around the corner. It has a small amount of vanillin in it.
Ah, I see! Too bad, it is so typical when finding things we like and it just disappears!
I went to their site and downloaded the SDS. It contains 3% vanillin, so it will be somewhat darker. Just plan your colors accordingly.
Also, according to the SDS it contains a few things that
may accelerate trace, (terpenes, cinnamal and one other thing I can`t remember right now, a long winded chemical name)
But even so it may also perform just fine without issues! It depends on the composition of the fragrance elements. Just keep it in the back of your head and work effectively and I think you will be fine!
Without knowing this fragrance I would perhaps get the batter to a stable emulsion, (not light or medium trace), then divide the batter, color it and add the fragrance in each segment after the color. If it misbehaves then you have at least bought yourself a littlebit of extra time, but you can also use it to your advantage (i.e make a layered soap instead of a swirled one).
Now, I know you said you don`t like experiments, but this one will take just a minute to do! (No, seriously, I promise!)
If you are going to make soap again one of these days, with a fragrance you already know and have worked with before, then you could make the batter to that regular soap as per usual, but before you add the fragrance you are going to use - just sacrifice a littlebit of the batter (enough for a bar, 100 grams) and put it in a plastic cup. Then just add some of the Three Wise Men fragrance (5%, depending on how strong you ususally make your soaps), stir and see how it behaves. No need to make a separate batter to find out! (I told you, easy peasy!)
Just let it set up in the plastic cup, it doesn`t have to look pretty, it is just to help you figure out the personality of the fragrance. That way you can at least get an idea if it is a fast tracer, curdles, seizer, or whatever, and if it will discolor a lot or less, depending on things.
You will have time to do that test if you want to make soaps that are ready before christmas if you do it soon.
It may save you some grief and hairpulling experiences if you try it, perhaps you find that want to keep the design simpler if it turns out to be difficult to work with. But then you would at least know.
(Eeep, sorry for the ramble!)