Inconsistent emoji rendering

[richardhozak]

Hello, while trying to update cosmic-text from version v0.7-ish (commit e00109d) to latest version v0.12.1 I've noticed there is a regression in rendering emojis.

The latest version renders only some emojis in color while rendering other in black/white version.

Here is a screenshot how it is rendered with 0.12.1

And here is a screenshot on how it was rendered with e00109d and v0.6

Notice the different emojis. The text also looks different but not incorrect.

I've also tested this with v0.11, v0.10, v0.9 and v0.8 and they all look the same as v0.12.1.
I've also tested with release v0.7, that also looks the same as v0.12.1. Then I tried downgrading to 0.6 and the emojis render correctly, so it must be some change between 0.6 and 0.7.

Is there anything I can test on my system to debug this issue or help you debug the issue?

[richardhozak]

So I've checked all the commits between 0.6.0...0.7.0 and found the regression which is commit 66288ab Noto Color Emoji should probably be higher in the fallback list. Will try to implement fix...