should both produce the same result, according to Unity's website.
Tips[]
When placing a sign three dots will appear on the front face of the sign; be sure to align the sign using this indicator.
Using Unicode (emojis, etc.) may use up multiple characters.
To save characters, omit the closing tags. (technically invalid syntax)
Colorization can be done using HTML color tags: <#FF0000> for red, or can be done using the shorthand form <#FF0> for yellow.
Use \n for newlines (or \v for vertical tabs) rather than <br> for line breaks, to save two characters. Similarly, \t can be used for horizontal tabs, and \r for carriage returns.
Tag attribute quotes can be omitted. Thus <color=red> and <size=9>.
Text is always automatically centered and scaled, thus multiple newlines at the start or end, combined with a fixed size (prevent scaling) would push the text out of the Sign, effectively creating floating neon text!
Signs can be built inside dungeons, allowing for a cheap and easy way of indicating directions to avoid getting lost. Using a bright-color format is more recommended to easily read what is written due to the darkness.