Dynamic Fonts: Fallback Font license?

Hi,

Unity supports dynamic fonts, which is a pretty cool feature especially for localizing texts. It replaces unsupported characters in a font with characters of a default (fallback) font. This font looks quite similar to Arial. But what about the license of this default font? I couldn’t find anything either on the internet nor in the unity manual / license agreements. The manual only says

“Note that fonts are subject to
copyright and you should only include
fonts that you have licensed or
created for yourself.”

which is quite unsatisfying…

Can anyone (maybe some Unity-Intern people?) tell me more about the license agreements? Can I use this fallback font in a game without any legal risks?

Yes, you can use the default Unity font without legal risks. While the asset is called “Arial.ttf” in Unity, it is actually set up to use Arial only on Platforms where this font is guaranteed to be available and provided by the OS (like OS X, Windows, iOS, etc). No actual font data is included in your project distribution in that case, but it will be loaded from the OS. On platforms which don’t distribute Arial by default, the “Arial.ttf” default font asset will contain the ttf font data of the Liberation Sans font, which is a freely available and redistributable font which matches the metrics of Arial. Liberation Sans is licensed under the SIL Open Font License, Version 1.1.