I've seen alot of people whine that they like x from one display mode and y from another but can't have them toegether. I was thinking, instead of alot of display modes, a tick box in which you select multiple effects to be displayed: pressure, velocity, fire glow, liquid glow, portal effects etc. They'll remain the same when you restart TPT, and we should still have presets so that old saves don't get messed up.
I had the idea as soon as I woke up. Sleep and dreams makes ideas. :D Anyway, I sometimes wished for a combined fancy and fire too. I'm almost sure you did too :)
I always liked fire display, but I don't like the spark effect sometimes, when there are massive amounts of it. Also, I like pressure display, but fire looks all BOYL'y in pressure display. So, I do like this idea. Although coding might be a hassle.