It’s not mandatory to use specifically the Symbola font. You could also package and use the Noto Color Emoji free font, as Firefox OS has done. [1][2] (FreeType supports that color font... unless Ubuntu Phone doesn’t use FreeType, of course.)
[1]: https://github.com/mozilla-b2g/moztt/commit/2372e891b10ff9a7382bbb4fbcd439a75cebd206 [2]: http://bugzil.la/939280
It’s not mandatory to use specifically the Symbola font. You could also package and use the Noto Color Emoji free font, as Firefox OS has done. [1][2] (FreeType supports that color font... unless Ubuntu Phone doesn’t use FreeType, of course.)
[1]: https:/ /github. com/mozilla- b2g/moztt/ commit/ 2372e891b10ff9a 7382bbb4fbcd439 a75cebd206 bugzil. la/939280
[2]: http://