TerminessTTF italic font broken

[ForteDexe]

Describe the bug
I did try several version of this font, the problem still exists.
I did try the font 'source code pro', it is working fine.

Screenshots

Environment details

kitty 0.24.2 created by Kovid Goyal
Linux ForteD-PCLi 5.16.7-1-MANJARO #1 SMP PREEMPT Sun Feb 6 12:22:29 UTC 2022 x86_64
Manjaro Linux 5.16.7-1-MANJARO  (ForteD-PCLi) (/dev/tty)


DISTRIB_ID=ManjaroLinux
DISTRIB_RELEASE=21.2.3
DISTRIB_CODENAME=Qonos
DISTRIB_DESCRIPTION="Manjaro Linux"
Running under: X11
Frozen: False
Paths:
  kitty: /usr/bin/kitty
  base dir: /usr/lib/kitty
  extensions dir: /usr/lib/kitty/kitty
  system shell: /usr/bin/zsh
Loaded config files:
  /home/forted/.config/kitty/kitty.conf

Config options different from defaults:
cursor_blink_interval      0.6
cursor_shape               3
cursor_stop_blinking_after 0
dynamic_background_opacity True
focus_follows_mouse        True
font_family                TerminessTTF Nerd Font Mono
font_size                  13.0
window_border_width        (1.0, 'pt')
window_padding_width       FloatEdges(left=1.0, top=1.0, right=1.0, bottom=1.0)
Added shortcuts:
	ctrl+c → copy_to_clipboard
	ctrl+v → paste_from_clipboard
Changed shortcuts:
	ctrl+shift+, → set_background_opacity -0.07
	ctrl+shift+. → set_background_opacity +0.07
Colors:
	active_border_color        #4c566a   
	background                 #242a36   
	color0                     #4c566a   
	color1                     #bf616a   
	color10                    #a3be8c   
	color11                    #d7ba7d   
	color12                    #5e81ac   
	color13                    #b48ead   
	color14                    #88c0d0   
	color15                    #b5c0dc   
	color2                     #a3be8c   
	color3                     #c68a75   
	color4                     #5e81ac   
	color5                     #b48ead   
	color6                     #88c0d0   
	color7                     #b5c0dc   
	color8                     #4c566a   
	color9                     #bf616a   
	inactive_border_color      #3b4252   

Environment variable names seen by the kitty process:
	CUDA_PATH
	DBUS_SESSION_BUS_ADDRESS
	DESKTOP_SESSION
	DISPLAY
	GTK2_RC_FILES
	GTK3_MODULES
	GTK_MODULES
	GTK_RC_FILES
	HOME
	KDE_APPLICATIONS_AS_SCOPE
	KDE_FULL_SESSION
	KDE_SESSION_UID
	KDE_SESSION_VERSION
	LANG
	LC_ADDRESS
	LC_IDENTIFICATION
	LC_MEASUREMENT
	LC_MONETARY
	LC_NAME
	LC_NUMERIC
	LC_PAPER
	LC_TELEPHONE
	LC_TIME
	LOGNAME
	MAIL
	MOTD_SHOWN
	OLDPWD
	PAM_KWALLET5_LOGIN
	PATH
	PWD
	QT_AUTO_SCREEN_SCALE_FACTOR
	QT_LINUX_ACCESSIBILITY_ALWAYS_ON
	QT_SCREEN_SCALE_FACTORS
	SESSION_MANAGER
	SHELL
	SHLVL
	SYSTEMD_EXEC_PID
	USER
	XAUTHORITY
	XCURSOR_SIZE
	XCURSOR_THEME
	XDG_CONFIG_DIRS
	XDG_CURRENT_DESKTOP
	XDG_DATA_DIRS
	XDG_RUNTIME_DIR
	XDG_SEAT
	XDG_SEAT_PATH
	XDG_SESSION_CLASS
	XDG_SESSION_DESKTOP
	XDG_SESSION_ID
	XDG_SESSION_PATH
	XDG_SESSION_TYPE
	XDG_VTNR
	_

Additional context
Try to reproduce the problem with kitty --config NONE:
I did, the problem still exist

[kovidgoyal]

that fonts metrics are not compatible with your base font. So either
pick a different italic font or a different base font or increase the
cell width by using adjust_cell_width in kitty.conf

[ForteDexe]

I try to adjust those option, most of the problem is fix, only 'p' character lose it leg. As you see konsole from kde is working fine, this should consider as a bug right ?

[kovidgoyal]

No, it is not a bug. Use adjust_line_height for that. kitty requires fonts that render well in a fixed
width cell. It does not work with fonts that are not metric compatible.