How would one override the hostname?

[ell1e]

How would one override the hostname in the title field, using the ~/config/fastfetch/config.jsonc? I've tried just replacing the entire field with a "custom" one, but then the "separator" below won't be the right size and the color coding is gone as well.

[CarterLi]

{
    "type": "separator",
    "times": 123 // your title length
}