anstream println field witdth is not aware of color codes

I would expect the following (rather silly minimal case) to align columns properly:

use anstream::println;
use anstyle::AnsiColor;
use anstyle::Reset;

enum MyLogLevel {
    Ok,
    Warn,
    Error,
}

impl std::fmt::Display for MyLogLevel {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            MyLogLevel::Ok => write!(f, "{}Ok{}", AnsiColor::Green.render_fg(), Reset.render()),
            MyLogLevel::Warn => write!(
                f,
                "{}Warning{}",
                AnsiColor::Yellow.render_fg(),
                Reset.render()
            ),
            MyLogLevel::Error => write!(f, "{}Error{}", AnsiColor::Red.render_fg(), Reset.render()),
        }
    }
}

fn main() {
    println!("{:<10} Everything is fine", "Ok");
    println!("{:<10} Be careful", "Warning");
    println!("{:<10} BAD BAD BAD", "Error");

    println!("{:<10} Everything is fine", MyLogLevel::Ok);
    println!("{:<10} Be careful", MyLogLevel::Warn);
    println!("{:<10} BAD BAD BAD", MyLogLevel::Error);
}

It prints:

Ok         Everything is fine
Warning    Be careful
Error      BAD BAD BAD
Ok Everything is fine
Warning Be careful
Error BAD BAD BAD

This is unexpected. So it seems the anstream println is not properly aware of how wide colour codes are.

Start by reproducing the Rust example from the issue and trace how anstream's println formatting handles width when a Display implementation emits ANSI color codes. Identify the relevant formatting path and add coverage for the example; done means colored values align with their uncolored equivalents.