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ZWJ emoji as account symbol only shows the first element of the emoji #9669
Description
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- I have used the search function to see if someone else has already submitted the same bug report.
- I will describe the problem with as much detail as possible.
App
Thunderbird for Android
App version
11.0
Where did you get the app from?
F-Droid
Android version
GrapheneOS 16 Build 2025081400
Device model
Pixel 9a
Steps to reproduce
- Go to Settings
- Edit one account
- General Settings
- Account name
- Put any ZWJ Emoji as the first character, e.g. 🐦🔥 (Phoenix)
Expected behavior
In the account overview the account symbol is the phoenix
Actual behavior
The account symbol is 🐦 (Bird, the first symbol of the ZWJ sequence)
In the settings the emoji is correctly displayed as phoenix.
Logs
The Phoenix emoji is a ZWJ sequence combining 🐦 Bird, Zero Width Joiner and 🔥 Fire. These display as a single emoji on supported platforms.
https://emojipedia.org/phoenix-bird
Note there can also be longer sequences like Family with two kids 👨👩👧👦
_
Let me say thank you for introducing the possibility to customise the account symbol with two letters or a single emoji.
Seems like the one emoji instead of two characters was even implemented purposefully instead of two emojis.
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bogomil commentedon Aug 28, 2025
Maybe that's a feature request?
DmitryNekrasov commentedon Oct 3, 2026
The monogram is made of the first 2 UTF-16 chars of the name, so from the phoenix only the bird is left. Also,
ValidateAvatarMonogramallows at most 3 chars, and the phoenix alone takes 5.I am working on utf8-string, a Kotlin Multiplatform string type that counts and iterates graphemes. It is my personal hobby and research project. With it, the monogram would be
name.replace(" ", "").u8.graphemes.take(2).joinToString(""), and the check would count graphemes withmonogram.u8.length. Would it be useful for you? And what API would you want to see?