Soooo... I just crossed by a old reddit comment and I was amazed what he found out. As you can see by the title, it's indeed a colored name on a item there are more colors but he used light red (&c for the color plugin). There's not much to say about this, I was looking this for ages. I have also seen alot of people who don't want to use MCEdit or use a color plugin, so i send it here because no one here saw that all the credits go to Marcono1234 because he found it out. So now i'll explain you how to change the name and the colour!
/setblock ~ ~1 ~ standing_sign 0 replace {Text1:"{text:\"Click\",clickEvent:{action:\"run_command\",value:\"/summon Item ~ ~1 ~ {Item:{id:(Item Name),Count:1,tag:{display:{Name:\(HTML code)(Name your item anything u like)\(HTML code)}}}}\"}}"}\
(btw I DIDN'T FOUND OUT ABOUT THIS ALL CREDITS GO TO MARCON1234 ONCE AGAIN!)
(And u need to put this in a command block)
-Sushii