These are entered in the "Message" Event Command. These functions appear in the game, but not the message editor. If you want to view what they look like in-game, hit the F2 key to preview the message.

Displays a hero's name - Enter "\n[x]"
Displays what a variable currently holds. - Enter "\v[x]"
Makes text coming after the "\c[7]" display as gray - Enter "\c[7]"
Makes text coming after the "\c[6]" display as yellow - Enter "\c[6]"
Makes text coming after the "\c[5]" display as magenta - Enter "\c[5]"
Makes text coming after the "\c[4]" display as teal - Enter "\c[4]"
Makes text coming after the "\c[3]" display as green - Enter "\c[3]"
Makes text coming after the "\c[2]" display as red - Enter "\c[2]"
Makes text coming after the "\c[0]" display as white - Enter "\c[0]"
Makes text coming after the "\c[1]" display as blue - Enter "\c[1]"