Only diff markup is color, which is lost in many situations

[tv42]

expect-test/src/lib.rs

Lines 721 to 725 in 0eba05e

	let formatted = match chunk {
	dissimilar::Chunk::Equal(text) => text.into(),
	dissimilar::Chunk::Delete(text) => format!("\x1b[4m\x1b[31m{}\x1b[0m", text),
	dissimilar::Chunk::Insert(text) => format!("\x1b[4m\x1b[32m{}\x1b[0m", text),
	};

This results in non-useful outputs under e.g. nextest run, when copy-pasted, and with some CI systems.

I would copy-paste an example here but, duh...