Uppercase accented characters are off with Fira Code

[blehel]

The baseline of uppercase accented characters is off when using the font Fira Code.
This seems to affect only the font sizes 12 and 13.

For example, if I write "ÁRVÍZTŰRŐ TÜKÖRFÚRÓGÉP" at the prompt, this is what I get:

Compare this to a libvte-based terminal emulator:

debug-config output:

kitty 0.18.3 created by Kovid Goyal
Linux aurora 5.8.9_1 #1 SMP Sun Sep 13 21:10:27 UTC 2020 x86_64
Void \r (\n) (\l)
Loaded config files: /home/blehel/.config/kitty/kitty.conf
Running under: X11

Config options different from defaults:
bold_font                  Fira Code Medium
color1                     Color(red=205, green=0, blue=0)
color10                    Color(red=0, green=238, blue=0)
color11                    Color(red=255, green=255, blue=0)
color12                    Color(red=0, green=0, blue=255)
color13                    Color(red=255, green=0, blue=255)
color14                    Color(red=0, green=205, blue=205)
color2                     Color(red=0, green=205, blue=0)
color3                     Color(red=205, green=205, blue=0)
color4                     Color(red=0, green=0, blue=168)
color5                     Color(red=205, green=0, blue=205)
color6                     Color(red=0, green=168, blue=168)
color7                     Color(red=168, green=168, blue=168)
color8                     Color(red=84, green=84, blue=84)
color9                     Color(red=255, green=0, blue=0)
cursor                     Color(red=0, green=255, blue=0)
disable_ligatures          1
font_family                Fira Code
font_features              {'FiraCode-Regular': ('+ss03', '+ss05', '+ss07'), 'FiraCode-Medium': ('+ss03', '+ss05', '+ss07')}
font_size                  13.0
foreground                 Color(red=168, green=168, blue=168)
mouse_hide_wait            0.0
pointer_shape_when_grabbed hand
strip_trailing_spaces      smart
Added shortcuts:
	 shift+f12 KeyAction(func='paste_from_selection', args=())
	 shift+control+space KeyAction(func='new_os_window_with_cwd', args=())

[Luflosi]

Also see #2086.

[kovidgoyal]

Use adjust_line_height in kitty.conf. presumably whatever font those
characters are coming from has metrics not compatible with your main
font.

[trygveaa]

This isn't about different metrics for different fonts, it happens even when all the characters are coming from Fira Code.

[kovidgoyal]

Then Fira Code doesnt report correct metrics, kitty simply uses the
reported font metrics to calculate cell height, see calc_cell_height()

[charbelnicolas]

This is still an issue with kitty in 2023. Xterm and alacritty work fine.

Alacritty:

Xterm:

Kitty:

This is using Iosevka latest version from github.

[charbelnicolas]

This is still an issue with kitty in 2023. Xterm and alacritty work fine.

Alacritty:

Xterm:

Kitty:

This is using Iosevka latest version from github.

This issue is now magically resolved for me today :P