This is a premium function so you need to have a premium package to use this function.
Go into your setup channel (🔧｜setup).
In the setup channel, at the top of the channel you must press the 🔶 react.
A new message will appear at the bottom of the same channel.
From the select box you will have to select a color to be changed.
The colors in the image are as close as possible to the color of the message.
If everything worked, you will receive a confirmation message in which the new color is displayed.
