I guess that by "certificates" you mean pilot licences but I don't know the relevance of the colours. Could you explain, please?
Yes, certainly. CAAP licenses are color-coded (or "colour"). Green for ATPLs, blue for CPLs I think, pink for SPLs etc. The entire card is colored so it looks terrible when it's photocopied. Personally I think they ought to use white cards with color-coded stripes instead so the text will look much more legible.
Second, I find it odd to write MPL license (or "licence") when "M.P.L." already includes the word. It's like saying "Multicrew Pilot's License License," so I wrote "MPL certificate."
By the way, as an FAA check airman told me, there is no such thing as an FAA license - they call the documents "certificates", e.g. ATP certificate, etc. It's actually the same banana.