System Message will not Convey a Message?

I have made a LocalScript in StarterPlayerScripts to create a system message.

This is the code I inserted into the script.

bc = BrickColor.new("Really red")
game.StarterGui:SetCore("ChatMakeSystemMessage", {
	Text = "Welcome to this new server!";
	Font = Enum.Font.Cartoon;
	Color = bc.Color;
	FontSize = Enum.FontSize.Size96;	
})