Block for creating any type of message

So, the mission of this block will be to help players on servers (usually SMP) to fake real game messages (like "Johnny22917 was slained by lalaljasdfgv01" et cetera) and to stylistically decorate events on servers with no creative mode . The block looks like a modified command block.

𝗛𝗢𝗪 𝗗𝗢𝗘𝗦 𝗜𝗧 𝗪𝗢𝗥𝗞???????

This block will let a player write messages without indication that this message was written by a player. After placing the block, you open its GUI, type any text, choose absolutely any color, and press "Send".Except color, you can also choose a font, a color for a specific letter and even change of colors for an every letter for a defenite period of time (mb it's too much but if this block will exist everybody will need it). Also, block will have a templtes for different occasions

The message instantly appears in the chat for all players. The block looks like a changed command block.

IS THIS CHEATING?
NO! This block does NOT affect gameplay. It cannot give items, teleport, or harm players. It is purely an artistic tool for chat and ONLY chat

𝗪𝗛𝗔𝗧'𝗦 𝗧𝗛𝗘 𝗖𝗥𝗔𝗙𝗧???????

idk exaclty, but a it should contain a Block of Redstone at the middle, red, blue and green dyes on top, copper and other redstone components