Their UI may be a bit low contrast out of the box (there are themes to fix that, luckily) but if you have a problem with it now, the new UI looks much worse. All the colors are gone and all the icons are now bland shapes.

It looks like they're copying VS Code's UI style which is a huge step backwards in my opinion. This UI minimalism looks great on paper but it's terribly confusing to actually work with and it can take weeks to get around it through sheer brute force and muscle memory.

I agree that their UI needs an overhaul but this isn't the solution.