Actions are used on certain cases while in the game, also to give rewards.
Message
Sends a message to the player.
message:&6➤&f&l%piece%&8[&f%coords%&8]&aselected!# Only if use_minimessage option is enabled in the configmessage:<gold>➤ <white><bold>%piece% <dark_gray>[<white>%coords%<dark_gray>] <green>selected!
Centered Message
Sends a centered message to the player.
centered_message:&e&lTIMEIS UP!# Only if use_minimessage option is enabled in the configcentered_message:<yellow><b>TIME IS UP!
When use_minimessage is enabled in the config:
This action only supports color MiniMessages tags. (You can't use other tags like <hover> or <click>, if you want to do so, use the message action and center the text manually)
Sends a title and subtitle message to the player. Use this format: "title: fadeIn;stay;fadeOut;title;subtitle" (The duration of fadeIn, stay and fadeOut must be in ticks, 20ticks = 1second)
If you want just a title, or just subtitle write "none"