@coderus: Freetype 2.5 says that it supports color emoji fonts (http://freetype.org/). However, it seems that upper layers should support it too and I have not yet seen "color" emojis while I'm able to use google's Noto Color Emoji font in gedit, it is monochrome and also it doesn't work in many other applications. So, you probably are right; but I didn't want to say that for sure. (It might need changes in Qt itself too).

@peterleinchen Thanks. And I also think that your proposed modification to thp's code will work too.