Kitty > configuration avec kitty.conf

kitty.conf

Ouvrir le fichier de config : ctrl+shift+f2

Recharger le fichier config : ctrl+shift+f5

Afficher les paramètres de la config : ctrl+shift+f6

(usually ~/.config/kitty/kitty.conf)

 

Lines can be split by starting the next line with the \ character.

 

include directive. If you use a relative path for include, it is resolved with respect to the location of the current config file. Note that environment variables are expanded, so ${USER}.conf becomes name.conf if USER=name. A special environment variable KITTY_OS is available, to detect the operating system. It is linux, macos or bsd. Also, you can use globinclude to include files matching a shell glob pattern and envinclude to include configuration from environment variables. Finally, you can dynamically generate configuration by running a program using geninclude. For example:

include other.conf
# Include *.conf files from all subdirs of kitty.d inside the kitty config dir
globinclude kitty.d/**/*.conf
# Include the *contents* of all env vars starting with KITTY_CONF_
envinclude KITTY_CONF_*
# Run the script dynamic.py placed in the same directory as this config file
# and include its :file:`STDOUT`. Note that Python scripts are fastest
# as they use the embedded Python interpreter, but any executable script
# or program is supported, in any language. Remember to mark the script
# file executable.
geninclude dynamic.py

NOTE : Syntax highlighting for kitty.conf in vim is available via vim-kitty.

Fonts

font_family, bold_font, italic_font, bold_italic_font

font_family      monospace
bold_font        auto
italic_font      auto
bold_italic_font auto

You can specify different fonts for the bold/italic/bold-italic variants. The easiest way to select fonts is to run the kitten choose-fonts command which will present a nice UI for you to select the fonts you want with previews and support for selecting variable fonts and font features. If you want to learn to select fonts manually, read the font specification syntax.

font_size 11.0 # Font size (in pts).

symbol_map

Has no default values. Example values are shown below:

symbol_map U+E0A0-U+E0A3,U+E0C0-U+E0C7 PowerlineSymbols

Map the specified Unicode codepoints to a particular font. Useful if you need special rendering for some symbols, such as for Powerline. Avoids the need for patched fonts. Each Unicode code point is specified in the form U+<code point in hexadecimal>. You can specify multiple code points, separated by commas and ranges separated by hyphens. This option can be specified multiple times. The syntax is:

symbol_map codepoints Font Family Name

Has no default values. Example values are shown below:

narrow_symbols U+E0A0-U+E0A3,U+E0C0-U+E0C7 1

Usually, for Private Use Unicode characters and some symbol/dingbat characters, if the character is followed by one or more spaces, kitty will use those extra cells to render the character larger, if the character in the font has a wide aspect ratio. Using this option you can force kitty to restrict the specified code points to render in the specified number of cells (defaulting to one cell). This option can be specified multiple times. The syntax is:

narrow_symbols codepoints [optionally the number of cells]

 

disable_ligatures never

Choose how you want to handle multi-character ligatures. The default is to always render them. You can tell kitty to not render them when the cursor is over them by using cursor to make editing easier, or have kitty never render them at all by using always, if you don’t like them. The ligature strategy can be set per-window either using the kitty remote control facility or by defining shortcuts for it in kitty.conf, for example:

map alt+1 disable_ligatures_in active always
map alt+2 disable_ligatures_in all never
map alt+3 disable_ligatures_in tab cursor

Note that this refers to programming ligatures, typically implemented using the calt OpenType feature. For disabling general ligatures, use the font_features option.

font_features

Has no default values. Example values are shown below:

font_features none

Choose exactly which OpenType features to enable or disable. Note that for the main fonts, features can be specified when selecting the font using the choose-fonts kitten. This setting is useful for fallback fonts.

Some fonts might have features worthwhile in a terminal. For example, Fira Code includes a discretionary feature, zero, which in that font changes the appearance of the zero (0), to make it more easily distinguishable from Ø. Fira Code also includes other discretionary features known as Stylistic Sets which have the tags ss01 through ss20.

For the exact syntax to use for individual features, see the HarfBuzz documentation.

Note that this code is indexed by PostScript name, and not the font family. This allows you to define very precise feature settings; e.g. you can disable a feature in the italic font but not in the regular font.

On Linux, font features are first read from the FontConfig database and then this option is applied, so they can be configured in a single, central place.

To get the PostScript name for a font, use the fc-scan file.ttf command on Linux

Enable alternate zero and oldstyle numerals:

font_features FiraCode-Retina +zero +onum

Enable only alternate zero in the bold font:

font_features FiraCode-Bold +zero

Disable the normal ligatures, but keep the calt feature which (in this font) breaks up monotony:

font_features TT2020StyleB-Regular -liga +calt

In conjunction with force_ltr, you may want to disable Arabic shaping entirely, and only look at their isolated forms if they show up in a document. You can do this with e.g.:

font_features UnifontMedium +isol -medi -fina -init

Modify font characteristics such as the position or thickness of the underline and strikethrough. The modifications can have the suffix px for pixels or % for percentage of original value. No suffix means use pts. For example:

modify_font underline_position -2
modify_font underline_thickness 150%
modify_font strikethrough_position 2px

Additionally, you can modify the size of the cell in which each font glyph is rendered and the baseline at which the glyph is placed in the cell. For example:

modify_font cell_width 80%
modify_font cell_height -2px
modify_font baseline 3

Note that modifying the baseline will automatically adjust the underline and strikethrough positions by the same amount. Increasing the baseline raises glyphs inside the cell and decreasing it lowers them. Decreasing the cell size might cause rendering artifacts, so use with care.

box_drawing_scale

box_drawing_scale 0.001, 1, 1.5, 2

The sizes of the lines used for the box drawing Unicode characters. These values are in pts. They will be scaled by the monitor DPI to arrive at a pixel value. There must be four values corresponding to thin, normal, thick, and very thick lines.

undercurl_style

undercurl_style thin-sparse

The style with which undercurls are rendered. This option takes the form (thin|thick)-(sparse|dense). Thin and thick control the thickness of the undercurl. Sparse and dense control how often the curl oscillates. With sparse the curl will peak once per character, with dense twice. Changing this option dynamically via reloading the config or remote control is undefined.

underline_exclusion

underline_exclusion 1

By default kitty renders gaps in underlines when they overlap with descenders (the parts of letters below the baseline, such as for y, q, p etc.). This option controls the thickness of the gaps. It can be either a unitless number in which case it is a fraction of the underline thickness as specified in the font or it can have a suffix of px for pixels or pt for points. Set to zero to disable the gaps. Changing this option dynamically via reloading the config or remote control is undefined.

text_composition_strategy

text_composition_strategy platform

Control how kitty composites text glyphs onto the background color. The default value of platform tries for text rendering as close to “native” for the platform kitty is running on as possible.

A value of legacy uses the old (pre kitty 0.28) strategy for how glyphs are composited. This will make dark text on light backgrounds look thicker and light text on dark backgrounds thinner. It might also make some text appear like the strokes are uneven.

You can fine tune the actual contrast curve used for glyph composition by specifying up to two space-separated numbers for this setting.

The first number is the gamma adjustment, which controls the thickness of dark text on light backgrounds. Increasing the value will make text appear thicker. The default value for this is 1.0 on Linux and 1.7 on macOS. Valid values are 0.01 and above. The result is scaled based on the luminance difference between the background and the foreground. Dark text on light backgrounds receives the full impact of the curve while light text on dark backgrounds is affected very little.

The second number is an additional multiplicative contrast. It is percentage ranging from 0 to 100. The default value is 0 on Linux and 30 on macOS.

If you wish to achieve similar looking thickness in light and dark themes, a good way to experiment is start by setting the value to 1.0 0 and use a dark theme. Then adjust the second parameter until it looks good. Then switch to a light theme and adjust the first parameter until the perceived thickness matches the dark theme.
text_fg_override_threshold

text_fg_override_threshold 0

A setting to prevent low contrast between foreground and background colors. Useful when working with applications that use colors that do not contrast well with your preferred color scheme. The default value is 0, which means no color overriding is performed. There are two modes of operation:

A value with the suffix ratio represents the minimum accepted contrast ratio between the foreground and background color. Possible values range from 0.0 ratio to 21.0 ratio. For example, to meet WCAG level AA a value of 4.5 ratio can be provided. The algorithm is implemented using HSLuv which enables it to change the perceived lightness of a color just as much as needed without really changing its hue and saturation.

A value with the suffix % represents the minimum accepted difference in luminance between the foreground and background color, below which kitty will override the foreground color. It is percentage ranging from 0 % to 100 %. If the difference in luminance of the foreground and background is below this threshold, the foreground color will be set to white if the background is dark or black if the background is light.

WARNING: Some programs use characters (such as block characters) for graphics display and may expect to be able to set the foreground and background to the same color (or similar colors). If you see unexpected stripes, dots, lines, incorrect color, no color where you expect color, or any kind of graphic display problem try setting text_fg_override_threshold to 0 to see if this is the cause of the problem or consider using the ratio mode of operation described above instead of the % mode of operation.

Text cursor customization

cursor #cccccc

Default text cursor color. If set to the special value none the cursor will be rendered with a “reverse video” effect. Its color will be the color of the text in the cell it is over and the text will be rendered with the background color of the cell. Note that if the program running in the terminal sets a cursor color, this takes precedence. Also, the cursor colors are modified if the cell background and foreground colors have very low contrast. Note that some themes set this value, so if you want to override it, place your value after the lines where the theme file is included.

cursor_text_color

cursor_text_color #111111

The color of text under the cursor. If you want it rendered with the background color of the cell underneath instead, use the special keyword: background. Note that if cursor is set to none then this option is ignored. Note that some themes set this value, so if you want to override it, place your value after the lines where the theme file is included.

cursor_shape

cursor_shape block

The cursor shape can be one of block, beam, underline. Note that when reloading the config this will be changed only if the cursor shape has not been set by the program running in the terminal. This sets the default cursor shape, applications running in the terminal can override it. In particular, shell integration in kitty sets the cursor shape to beam at shell prompts. You can avoid this by setting shell_integration to no-cursor.

cursor_shape_unfocused

cursor_shape_unfocused hollow

Defines the text cursor shape when the OS window is not focused. The unfocused cursor shape can be one of block, beam, underline, hollow and unchanged (leave the cursor shape as it is).

cursor_beam_thickness

cursor_beam_thickness 1.5

The thickness of the beam cursor (in pts).

cursor_underline_thickness

cursor_underline_thickness 2.0

The thickness of the underline cursor (in pts).

cursor_blink_interval

cursor_blink_interval -1

The interval to blink the cursor (in seconds). Set to zero to disable blinking. Negative values mean use system default. Note that the minimum interval will be limited to repaint_delay. You can also animate the cursor blink by specifying an easing function. For example, setting this to option to 0.5 ease-in-out will cause the cursor blink to be animated over a second, in the first half of the second it will go from opaque to transparent and then back again over the next half. You can specify different easing functions for the two halves, for example: -1 linear ease-out. kitty supports all the CSS easing functions. Note that turning on animations uses extra power as it means the screen is redrawn multiple times per blink interval. See also, cursor_stop_blinking_after.

cursor_stop_blinking_after

cursor_stop_blinking_after 15.0

Stop blinking cursor after the specified number of seconds of keyboard inactivity. Set to zero to never stop blinking.

cursor_trail

cursor_trail 0

Set this to a value larger than zero to enable a “cursor trail” animation. This is an animation that shows a “trail” following the movement of the text cursor. It makes it easy to follow large cursor jumps and makes for a cool visual effect of the cursor zooming around the screen. The actual value of this option controls when the animation is triggered. It is a number of milliseconds. The trail animation only follows cursors that have stayed in their position for longer than the specified number of milliseconds. This prevents trails from appearing for cursors that rapidly change their positions during UI updates in complex applications. See cursor_trail_decay to control the animation speed and cursor_trail_start_threshold to control when a cursor trail is started.

cursor_trail_decay

cursor_trail_decay 0.1 0.4

Controls the decay times for the cursor trail effect when the cursor_trail is enabled. This option accepts two positive float values specifying the fastest and slowest decay times in seconds. The first value corresponds to the fastest decay time (minimum), and the second value corresponds to the slowest decay time (maximum). The second value must be equal to or greater than the first value. Smaller values result in a faster decay of the cursor trail. Adjust these values to control how quickly the cursor trail fades away.

cursor_trail_start_threshold

cursor_trail_start_threshold 2

Set the distance threshold for starting the cursor trail. This option accepts a positive integer value that represents the minimum number of cells the cursor must move before the trail is started. When the cursor moves less than this threshold, the trail is skipped, reducing unnecessary cursor trail animation.

Scrollback

scrollback_lines 2000

Number of lines of history to keep in memory for scrolling back. Memory is allocated on demand. Negative numbers are (effectively) infinite scrollback. Note that using very large scrollback is not recommended as it can slow down performance of the terminal and also use large amounts of RAM. Instead, consider using scrollback_pager_history_size. Note that on config reload if this is changed it will only affect newly created windows, not existing ones.

scrollback_indicator_opacity

scrollback_indicator_opacity 1.0

The opacity of the scrollback indicator which is a small colored rectangle that moves along the right hand side of the window as you scroll, indicating what fraction you have scrolled. The default is one which means fully opaque, aka visible. Set to a value between zero and one to make the indicator less visible.

scrollback_pager

scrollback_pager less --chop-long-lines --RAW-CONTROL-CHARS +INPUT_LINE_NUMBER

Program with which to view scrollback in a new window. The scrollback buffer is passed as STDIN to this program. If you change it, make sure the program you use can handle ANSI escape sequences for colors and text formatting. INPUT_LINE_NUMBER in the command line above will be replaced by an integer representing which line should be at the top of the screen. Similarly CURSOR_LINE and CURSOR_COLUMN will be replaced by the current cursor position or set to 0 if there is no cursor, for example, when showing the last command output.

scrollback_pager_history_size

scrollback_pager_history_size 0

Separate scrollback history size (in MB), used only for browsing the scrollback buffer with pager. This separate buffer is not available for interactive scrolling but will be piped to the pager program when viewing scrollback buffer in a separate window. The current implementation stores the data in UTF-8, so approximately 10000 lines per megabyte at 100 chars per line, for pure ASCII, unformatted text. A value of zero or less disables this feature. The maximum allowed size is 4GB. Note that on config reload if this is changed it will only affect newly created windows, not existing ones.

scrollback_fill_enlarged_window

scrollback_fill_enlarged_window no

Fill new space with lines from the scrollback buffer after enlarging a window.

wheel_scroll_multiplier

wheel_scroll_multiplier 5.0

Multiplier for the number of lines scrolled by the mouse wheel. Note that this is only used for low precision scrolling devices, not for high precision scrolling devices on platforms such as macOS and Wayland. Use negative numbers to change scroll direction. See also wheel_scroll_min_lines.

wheel_scroll_min_lines

wheel_scroll_min_lines 1

The minimum number of lines scrolled by the mouse wheel. The scroll multiplier only takes effect after it reaches this number. Note that this is only used for low precision scrolling devices like wheel mice that scroll by very small amounts when using the wheel. With a negative number, the minimum number of lines will always be added.

touch_scroll_multiplier

touch_scroll_multiplier 1.0

Multiplier for the number of lines scrolled by a touchpad. Note that this is only used for high precision scrolling devices on platforms such as macOS and Wayland. Use negative numbers to change scroll direction.

Mouse

mouse_hide_wait 3.0

Hide mouse cursor after the specified number of seconds of the mouse not being used. Set to zero to disable mouse cursor hiding. Set to a negative value to hide the mouse cursor immediately when typing text. Disabled by default on macOS as getting it to work robustly with the ever-changing sea of bugs that is Cocoa is too much effort.

By default, once the cursor is hidden, it is immediately unhidden on any further mouse events.

Two formats are supported:

><hide-wait>><hide-wait> <unhide-wait> <unhide-threshold> <scroll-unhide>

To change the unhide behavior, the optional parameters <unhide-wait>, <unhide-threshold>, and <scroll-unhide> may be set.

<unhide-wait>

Waits for the specified number of seconds after mouse events before unhiding the mouse cursor. Set to zero to unhide mouse cursor immediately on mouse activity. This is useful to prevent the mouse cursor from unhiding on accidental swipes on the trackpad.

<unhide-threshold>

Sets the threshold of mouse activity required to unhide the mouse cursor, when the <unhide-wait> option is non-zero. When <unhide-wait> is zero, this has no effect.

For example, if <unhide-threshold> is 40 and <unhide-wait> is 2.5, when kitty detects a mouse event, it records the number of mouse events in the next 2.5 seconds, and checks if that exceeds 40 * 2.5 = 100. If it does, then the mouse cursor is unhidden, otherwise nothing happens.

<scroll-unhide>

Controls what mouse events may unhide the mouse cursor. If enabled, both scroll and movement events may unhide the cursor. If disabled, only mouse movements can unhide the cursor.

Examples of valid values:

>0.0>1.0

>-1.0

>0.1 3.0 40 yes

url_color, url_style

url_color #0087bd
url_style curly

The color and style for highlighting URLs on mouse-over. url_style can be one of: none, straight, double, curly, dotted, dashed.
open_url_with

open_url_with default

The program to open clicked URLs. The special value default will first look for any URL handlers defined via the Scripting the mouse click facility and if non are found, it will use the Operating System’s default URL handler (open on macOS and xdg-open on Linux).

url_prefixes

url_prefixes file ftp ftps gemini git gopher http https irc ircs kitty mailto news sftp ssh

The set of URL prefixes to look for when detecting a URL under the mouse cursor.

detect_urls

detect_urls yes

Detect URLs under the mouse. Detected URLs are highlighted with an underline and the mouse cursor becomes a hand over them. Even if this option is disabled, URLs are still clickable. See also the underline_hyperlinks option to control how hyperlinks (as opposed to plain text URLs) are displayed.

url_excluded_characters

Additional characters to be disallowed from URLs, when detecting URLs under the mouse cursor. By default, all characters that are legal in URLs are allowed. Additionally, newlines are allowed (but stripped). This is to accommodate programs such as mutt that add hard line breaks even for continued lines. \n can be added to this option to disable this behavior. Special characters can be specified using backslash escapes, to specify a backslash use a double backslash.

show_hyperlink_targets

show_hyperlink_targets no

When the mouse hovers over a terminal hyperlink, show the actual URL that will be activated when the hyperlink is clicked.

underline_hyperlinks

underline_hyperlinks hover

Control how hyperlinks are underlined. They can either be underlined on mouse hover, always (i.e. permanently underlined) or never which means that kitty will not apply any underline styling to hyperlinks. Note that the value of always only applies to real (OSC 8) hyperlinks not text that is detected to be a URL on mouse hover. Uses the url_style and url_color settings for the underline style. Note that reloading the config and changing this value to/from always will only affect text subsequently received by kitty.

copy_on_select

copy_on_select no

Copy to clipboard or a private buffer on select. With this set to clipboard, selecting text with the mouse will cause the text to be copied to clipboard. Useful on platforms such as macOS that do not have the concept of primary selection. You can instead specify a name such as a1 to copy to a private kitty buffer. Map a shortcut with the paste_from_buffer action to paste from this private buffer. For example:

copy_on_select a1
map shift+cmd+v paste_from_buffer a1

Note that copying to the clipboard is a security risk, as all programs, including websites open in your browser can read the contents of the system clipboard.

clear_selection_on_clipboard_loss

clear_selection_on_clipboard_loss no

When the contents of the clipboard no longer reflect the current selection, clear it. This is primarily useful on platforms such as Linux where selecting text automatically copies it to a special “primary selection” clipboard or if you have copy_on_select set to clipboard.

Note that on macOS the system does not provide notifications when the clipboard owner is changed, so there, copying to clipboard in a non-kitty application will not clear selections even if copy_on_select is enabled.

paste_actions

paste_actions quote-urls-at-prompt,confirm

A comma separated list of actions to take when pasting text into the terminal. The supported paste actions are:

quote-urls-at-prompt:

If the text being pasted is a URL and the cursor is at a shell prompt, automatically quote the URL (needs shell_integration).

>replace-dangerous-control-codes

Replace dangerous control codes from pasted text, without confirmation.

>replace-newline

Replace the newline character from pasted text, without confirmation.

confirm:

Confirm the paste if the text to be pasted contains any terminal control codes as this can be dangerous, leading to code execution if the shell/program running in the terminal does not properly handle these.

confirm-if-large

Confirm the paste if it is very large (larger than 16KB) as pasting large amounts of text into shells can be very slow.

filter:

Run the filter_paste() function from the file paste-actions.py in the kitty config directory on the pasted text. The text returned by the function will be actually pasted.

no-op:

Has no effect.

strip_trailing_spaces

strip_trailing_spaces never

Remove spaces at the end of lines when copying to clipboard. A value of smart will do it when using normal selections, but not rectangle selections. A value of always will always do it.

select_by_word_characters

select_by_word_characters @-./_~?&=%+#

Characters considered part of a word when double clicking. In addition to these characters any character that is marked as an alphanumeric character in the Unicode database will be matched.

select_by_word_characters_forward

Characters considered part of a word when extending the selection forward on double clicking. In addition to these characters any character that is marked as an alphanumeric character in the Unicode database will be matched.

If empty (default) select_by_word_characters will be used for both directions.
click_interval

click_interval -1.0

The interval between successive clicks to detect double/triple clicks (in seconds). Negative numbers will use the system default instead, if available, or fallback to 0.5.

focus_follows_mouse

focus_follows_mouse no

Set the active window to the window under the mouse when moving the mouse around. On macOS, this will also cause the OS Window under the mouse to be focused automatically when the mouse enters it.

pointer_shape_when_grabbed

pointer_shape_when_grabbed arrow

The shape of the mouse pointer when the program running in the terminal grabs the mouse.

default_pointer_shape

default_pointer_shape beam

The default shape of the mouse pointer.

pointer_shape_when_dragging

pointer_shape_when_dragging beam crosshair

The default shape of the mouse pointer when dragging across text. The optional second value sets the shape when dragging in rectangular selection mode.

Mouse actions

Mouse buttons can be mapped to perform arbitrary actions. The syntax is:

mouse_map button-name event-type modes action

Where button-name is one of left, middle, right, b1 … b8 with added keyboard modifiers. For example: ctrl+shift+left refers to holding the Ctrl+Shift keys while clicking with the left mouse button. The value b1 … b8 can be used to refer to up to eight buttons on a mouse.

event-type is one of press, release, doublepress, triplepress, click, doubleclick. modes indicates whether the action is performed when the mouse is grabbed by the program running in the terminal, or not. The values are grabbed or ungrabbed or a comma separated combination of them. grabbed refers to when the program running in the terminal has requested mouse events. Note that the click and double click events have a delay of click_interval to disambiguate from double and triple presses.

You can run kitty with the kitty --debug-input command line option to see mouse events. See the builtin actions below to get a sense of what is possible.

If you want to unmap a button, map it to nothing. For example, to disable opening of URLs with a plain click:

mouse_map left click ungrabbed

See all the mappable actions including mouse actions here.

Note

Once a selection is started, releasing the button that started it will automatically end it and no release event will be dispatched.

clear_all_mouse_actions

clear_all_mouse_actions no

Remove all mouse action definitions up to this point. Useful, for instance, to remove the default mouse actions.

Click the link under the mouse or move the cursor

mouse_map left click ungrabbed mouse_handle_click selection link prompt

First check for a selection and if one exists do nothing. Then check for a link under the mouse cursor and if one exists, click it. Finally check if the click happened at the current shell prompt and if so, move the cursor to the click location. Note that this requires shell integration to work.

Click the link under the mouse or move the cursor even when grabbed

mouse_map shift+left click grabbed,ungrabbed mouse_handle_click selection link prompt

Same as above, except that the action is performed even when the mouse is grabbed by the program running in the terminal.

Click the link under the mouse cursor

mouse_map ctrl+shift+left release grabbed,ungrabbed mouse_handle_click link

Variant with Ctrl+Shift is present because the simple click based version has an unavoidable delay of click_interval, to disambiguate clicks from double clicks.

Discard press event for link click

mouse_map ctrl+shift+left press grabbed discard_event

Prevent this press event from being sent to the program that has grabbed the mouse, as the corresponding release event is used to open a URL.

Paste from the primary selection

mouse_map middle release ungrabbed paste_from_selection
mouse_map left press ungrabbed mouse_selection normal
mouse_map ctrl+alt+left press ungrabbed mouse_selection rectangle
mouse_map left doublepress ungrabbed mouse_selection word
mouse_map left triplepress ungrabbed mouse_selection line
mouse_map ctrl+alt+left triplepress ungrabbed mouse_selection line_from_point

Select from the clicked point to the end of the line. If you would like to select the word at the point and then extend to the rest of the line, change line_from_point to word_and_line_from_point.

Extend the current selection

mouse_map right press ungrabbed mouse_selection extend

If you want only the end of the selection to be moved instead of the nearest boundary, use move-end instead of extend.
Paste from the primary selection even when grabbed

mouse_map shift+middle release ungrabbed,grabbed paste_selection
mouse_map shift+middle press grabbed discard_event
mouse_map shift+left press ungrabbed,grabbed mouse_selection normal
mouse_map ctrl+shift+alt+left press ungrabbed,grabbed mouse_selection rectangle
mouse_map shift+left doublepress ungrabbed,grabbed mouse_selection word
mouse_map shift+left triplepress ungrabbed,grabbed mouse_selection line
mouse_map ctrl+shift+alt+left triplepress ungrabbed,grabbed mouse_selection line_from_point

Select from the clicked point to the end of the line even when grabbed. If you would like to select the word at the point and then extend to the rest of the line, change line_from_point to word_and_line_from_point.

Extend the current selection even when grabbed

mouse_map shift+right press ungrabbed,grabbed mouse_selection extend
mouse_map ctrl+shift+right press ungrabbed mouse_show_command_output

Requires shell integration to work.

Terminal bell

enable_audio_bell no
visual_bell_duration 0.0 # en secondes, 0.0 pour disable
visual_bell_color none #
window_alert_on_bell yes
bell_on_tab "