What Tex says about the icons is correct as far as I can tell.
We've also introduced a non-standard "moved" symbol, which is an arrow pointing the right, because the standard "moved" symbol was far too similar to the other ones.
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"The uprooting of identity is seen by the noble ones as pleasurable; but this contradicts what the whole world sees." (Snp 3.12)