Re: Diff mode faces

[Richard Stallman]

    Then could you explain the reasons for removing comments highlighting
    on tty with leaving only comment delimiters highlighted.

I explained them a few weeks ago.

    I see no big difference between comments displayed in red and diff lines
    displayed in bold italic magenta (the latter looks even worse).

I don't think the issues are similar.

    I don't insist on changing the default diff face on tty, but trying to
    achieve consistency.

Consistency doesn't apply for two issues that are quite different.