Hello!
First of all, thank you for sending in your question!
Here is a guide and the list of colour codes and fonts for signs.
1] Place the sign on the ground.
2] Type &[number or letter]
3] Type a few letters and you will discover that they have changed color or font
&0 BLACK
&1 DARK BLUE
&2 DARK GREEN
&3 DARK AQUA
&4 DARK RED
&5 DARK PURPLE
&6 GOLD
&7 GRAY
&8 DARK GRAY
&9 INDIGO
&A GREEN
&B AQUA
&C RED
&D PINK
&E YELLOW
&F WHITE
&M STRIKE THROUGH
&N UNDERLINED
&L BOLD
&K RANDOM
&O ITALIC
Question Answered If you have any further questions then please don't hesitate to start a conversation with me or ask again via this method!