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Italic text is rendered incorrectly and looks weird #14094
Description
Windows Terminal version
1.16.2641.0
Windows build number
windows 21H2 enterprise 19044.1889
Other Software
- GNU bash 4.2.46(2)-release, x86_64-redhat-linux-gnu
- tmux 3.1a, with
$TERM=xterm-256color - CentOS 7.9 x64, login by openSSH integrated in windows
- Font: FiraCode NF Retina with NERD font patch.
Steps to reproduce
login the CentOS, and run tmux, then run these following commands:
echo -e "ABCDEFGHIJKLMNOPQRSTUVWXYZ \e[3mABCDEFGHIJKLMNOPQRSTUVWXYZ\e[0m"
echo -e "abcdefghijklmnopqrstuvwxyz \e[3mabcdefghijklmnopqrstuvwxyz\e[0m"
echo -e "0123456789,./<>?;'[]:{}-=_+*&^%$#@!()| \e[3m0123456789,./<>?;'[]:{}-=_+*&^%$#@!()|\e[0m"The configuration for the SSH session:
{
"adjustIndistinguishableColors": "indexed",
"antialiasingMode": "grayscale",
"backgroundImage": null,
"closeOnExit": "always",
"colorScheme": "Campbell",
"commandline": "ssh p8zhang@<host>",
"cursorShape": "underscore",
"font":
{
"face": "FiraCode NF Retina",
"size": 11.0
},
"guid": "{6c5275a4-b63e-46ce-a2eb-e3ea1f73666f}",
"hidden": false,
"historySize": 100001,
"intenseTextStyle": "bright",
"opacity": 85,
"padding": "8",
"useAcrylic": true,
"useAtlasEngine": true
}I guessed this issue is related to the new Atlas Engine, but there would be nothing changed if I turned off it.
Expected Behavior
No response
Actual Behavior
You will get these WEIRD italics:
And this issue could be reproduced in the PowerShell 7.2.6, with the almost same configuration of the SSH session.
Just run "$($PSStyle.italic)ABCDEFGHIJKLMNOPQRSTUVWXYZ", you will got the similar result:
Activity
zhang-stephen commentedon Sep 28, 2022
I think it's an issue introduced by new Atlas Engine now... The renderer works well with reopening the session after new engine disabled.
[-]The italic is rendered by wrong way, looks very weird. [/-][+]Italic text is rendered incorrectly and looks weird[/+]lhecker commentedon Sep 29, 2022
Yep we know about this issue. This happens because we don't support glyphs that are too wide to fit into their cells. For instance the "A" character is 1 cell wide. But a italic "A" character is about 1.2 cells wide and so it gets shrinked down. This primarily happens with Nerd Fonts because it doesn't ship italic variations with their fonts.
I'm currently working on a general solution.