Saw a PRG during Totally Wild about an hour ago, it’s weird how 10 use green for the “C” [children’s] classification bug, I suppose though it is commensurate to “G” (same for “P” [preeschoolers]).
When the ACB overhauled the classification system in 2005 and introduced colour coding, ACMA soon followed for Free TV.
Seven and Nine adpoted a generic pink for “P”, yellow/orange for “C” and purple for “AV15+”, while 10 (as aforementioned) just used the same colour as “G” for “P” and “C” and used red (like “MA15+”) for the commensurate “AV15+” - although did eventually adopt the purple. Not sure if they ever ended up using the pink or yellow/orange.