On 2016-06-29 08:11, Jiajie Chen wrote:
> By the way, I wonder when will multi-color font be supported on Linux?
> At that time the multi-color font will be re-enabled in NS port.

See https://lists.gnu.org/archive/html/emacs-devel/2015-12/msg00713.html for the latest discussion on this.
I think the answer is "not for a few years, at least".