Is ◻ instead of [] a good idea?

[vi]

It makes empty list/vector look like some entirely new object instead of just a list without any elements.

[MadcapJake]

I personally like it. The unicode square you have in the title is quite a bit smaller than the bracket-square that Fira Code provides.

[sjmielke]

It really threw me off at first as well. Is there an easy way to remove it from the font file?

[xcambar]

Agreed, I find it very eye-catching and it doesn't quite recall an empty vector to me.

[vyp]

+1 on having an option to remove it if it's possible.

[weavejester]

Maybe there should be a subtle break between the two [], similar to the way -- is rendered.

[xcambar]

@weavejester 👍

[surrealist]

The square for [ ] confuses me too.
I'd like to know what are scenarios or usages that square make good senses of [].

[bootmii]

Java uses it as a dimension symbol.

[tp]

Was also confused by this when using array type shorthand:

Maybe it would improve when my theme would use italics for types, but using the default behavior I find the square box way to prominent.

[banshee]

The box for [] always makes me think it's just a missing unicode character box.

[tobia]

@surrealist in some languages, such as Haskell, [] is a distinct object with its own identity.

That being said, I agree with @weavejester that a subtle break between the two [] would be useful.

[joelalejandro]

+1 , agreed with @tobia

[Juerd]

Suggestion: make the subtle break diagonal.