It's hilarious to me that people talk about "ugly" as if their opinions are objective.

I found Rust unpleasant to look at for the first two weeks of learning it, and now that I've been using it professionally for three years I loathe when I need to read code in other languages.

No other language can rival Rust in showing the exact information needed to understand the code

never too much and never too little

while being concise, correct, and handling all edge cases.

You can be more concise in other languages, but it will come the loss of handling every little possible bug. You can be prettier in other languages, but it will come at the price of adding a lot of useless boilerplate.

Of course there are cases where Rust can be verbose or confusing, but that's when you're doing very esoteric things that would be just as confusing in other languages.

Like any opinion on aesthetics, how someone feels about the prettiness of a language will have far more to do with familiarity than with any objective metrics.