Dear Maintainer,

I would find it useful when doing 'aptitude upgrade' to (optionally) show
the list of proposed actions using colours to distinguish those to be
removed, installed, upgraded and recommended.  This would draw attention
immediately to possible unintended consequences before answering "Do you
want to continue? [Y/n/?]".

Obviously, this would only be enabled if the user wants it and the $TERM
supports colours.