Chatting bubbles

Bubble is similar to nameplate but has an addtional part called "tail"

text-format: <black>
display-name: Default Chat Bubbles
left:
  image: chat_left
  height: 13
  ascent: 9
  width: 3
middle:
  image: chat_middle
  height: 13
  ascent: 9
  width: 5
right:
  image: chat_right
  height: 13
  ascent: 9
  width: 5
tail:
  image: chat_tail
  height: 13
  ascent: 9
  width: 7

text-format: Decides the format of the text in bubbles