Particles!
A stream of particles of your choice along the line of your boost shot. A burst where you hit and another if you get a player. Boost particles can be configured individually by Boost Stick to give the various sticks more fun differences.
Particle changes were tested on Minecraft 1.16.4 and Minecraft 1.12.2



Other changes:

• Messages in message.yml are now nested under a single configuration node so that they are grouped together nicely after using "/boost updateconfig". Your existing messages.yml will be automatically updated when this version is first loaded.
• Configuration for boss-bar colour and style.
• Configuration items that need to be upper case are forced upper case when loaded to reduce the chance of useless errors on load.
• Fixed "/boost togglelobbyboost" showing the command help even though the syntax was correct and it worked.