Also consider the UI after you've used it for a time. The following isn't about computer UIs, but I think it's germane.
Some decades ago, Denny's Restaurants hired a consulting firm to help it pick a new color scheme for its stores. The twin requirements were that, on initial entry, hit all of the right buttons (bright, warm, inviting, blah, blah, blah), but after a short time became unconsciously slightly disturbing (gotta turn tables!). After a bunch of testing, they came up with a black/orange combo. It did what it was designed to do. Customers liked the refresh! They just didn't notice that they weren't hanging around quite as long. But the outdoor sign stayed yellow and red. Why? Those two colors make use eat!
Moral of the story?
Something that looks good initially can become a subconscious irritant.
With Studio One, I am still a little put off by all of the bright track colors I see in videos, but I'm beginning to see the value of it in comping, for example. I prefer the brighter pastel colors (if that's not an oxymoron). But what I'm really getting comfortable with is the 50 Shades Of Grey (well, not that many) in the base UI (without all of the user track coloring added). I find it easy to read and not eye fatiguing.