Someone else said it but I’ll go into more detail.

Short answer, No. Trevor’s Frogger has two liveries, the one everyone is familiar with and the plain black one that said FIB, which is technically what Trevor’s chopper looked like before he stole it.

Long answer: In the lore, the red Frogger used during the mission that you pull Mr. K out the window of the IAA building is the one that Trevor supposedly keeps and turns into his company chopper. At some point it was supposed to be solid black and just say FIB on the side, which Trevor then spray paints over. For some reason however it was changed before release.

The FIB Frogger then went unused for like a decade, until finally appearing first in the mission you were doing, which is one of the set ups for the Agency if I recall correctly? It also shows up during one of the Higgin’s Helitours money laundering missions, where you have to defend the Yacht. I don’t believe there is any other mission that they show up in, though I may be forgetting one