Activity › Forums › Apple Final Cut Pro Legacy › Green symbol with check mark Apple Final Cut Pro Legacy Green symbol with check mark Posted by Radhika on June 14, 2005 at 12:05 am what does it mean? Gunner Jones replied 20 years, 11 months ago 2 Members · 1 Reply 1 Reply Gunner Jones June 14, 2005 at 3:10 am It’s called Range Check. It’s for checking for excess luma and chroma. Control Z turns it off. Reply to this Discussion! Login or Sign Up Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me Reply to this Discussion! Login or Sign Up