I think they are similar because they have a similar meaning. I have suggested using a red colour for this icons. I also suggest using the same icon, rotated and green to apply, using the green v and the red x for yes and no actions.
-- the Human "cancel" icon is not appropriate https://launchpad.net/bugs/45444 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs