One of the features introduced in Season 5, is the Trails editor. This allows people with access to create their own Trails, using the many different effects and styles available.
Effect: Determines what the particle is going to look like. These are particles that you will see throughout a Minecraft world.
Style: Determines what shape the particles are going to spawn in around the user.
Data: Determines extraneous data about specific effects. This can include things such as color, note color, item material and block material. If an effect does not need this data, it is omitted.
Remainder of the article is WIP.