Now it is possible, you can set the messages of the plugins as you like. You can use hex color for the plugin.
However, the usage messages do not support the hexcolor colors and neither does & for the colors. Please use ยง for this as well as in the messages of the other commands if you want to use the minecraf color codes
Unfortunately, I loaded the wrong version and only have an old one, so bug fixes are available again. An update is coming but soon you will see more on the discord