This mod is a simple, cosmetic mod that adds 16 coloured torches into the game. These torches could be used as a substitute to mini-maps, instead using different colours to mark locations/routes to those locations.
Crafting of the torches is simple, as shown below (note this is the same for all colours of dye!)
Furthermore, the torches can be right clicked with the dye in hand to change it's colour, giving you the old colour back!
Source code for the mod, and any issues/requests can be found here: https://github.com/Tim020/Coloured-Torches
Feel free to use this in private/public mod packs!