How to create redstone fire works
Place a sign, on the secound line put [Firework] and on the thrid line put the colour, for example [White] or [Red]
White, Orange, Magenta, LightBlue, Yellow, Lime, Pink, Grey, Sliver, Cyan, Purple, Blue, Brown, Green, Red, Black, Pumpkin, SnowBlock and exp
Ids can be used as well. For example  is white as well as [35:0]. [35:14] is red and  is pumpkin.
If on the 3rd line you put "[help]" or "help" Then you will be shown the list in game.
Custom fireworks are like this, [CustomX] X being the firework number
To create these signs you must have the permission 'colourfireworks.redstone.*'