Firework Frenzy - Ends 6th November

[MKR&*42]

Quick, I need your help as there isn't much time! We've been given some fireworks to set off for Bonfire/Firework Night alongside strict instructions of which firework we need to set off first, unfortunately someone called Sophie managed to lose the instructions and we're now stuck with only a few clues to help us. There are four questions below which when answered result in a colour - either red, purple, green, yellow or pink. For all you mathematicians out there, you'll see there are five colours and only four questions, this means the one remaining colour = the firework you must set off first!

1) What is the colour of the dot on the Japanese flag?
2) Fill in the blanks: I'm going _____ with envy.
3) This colour precedes the word "pandemic" to make the name of a flower furniture item on Habbo.
4) Gogol Bordello sang a song with this colour in its title (I'll allow you to Google if you don't know, aren't I nice x)

Once you have figured out the remaining colour, send your answer via PM to HabboxComps! Good luck.
(No the answer is not necessarily the firework colour missing from the top row, there are only four up there for design purposes.)

Prize: 10 Credits/Rare of equivalent value + 15 Reputation Points