Auto dark mode for wsl apps

Change wsl2 app themes based on Windows theme switch

Requirements

• wsl2
• AutoDarkMode
• zsh (recommended)*

* May work with bash, to try, change the first line of adm.sh and functions.sh from:

#!/usr/bin/zsh

to

#!/usr/bin/bash

Usage

1. Configure the scripts.yaml of AutoDarkMode:

Enabled: true
Component:
  Scripts:
# Other scripts (if any)
  - Name: autodarkmode_wsl
    Command: powershell
    ArgsLight: [-NoProfile, -Command, wsl path/to/repo/adm.sh 1]
    ArgsDark: [-NoProfile, -Command, wsl path/to/repo/adm.sh 0]
    AllowedSources: [Any]

2. Put the following in ~/.zprofile or $ZDOTDIR/.zprofile:

if [ -z $TMUX ]
then
    path/to/repo/adm.sh
fi

Configuration

Currently the script is configured for:

• wslg
• tmux
• neovim
• lazygit
• bat
• glow

** NOTE: You need to have your own configuration files for light and dark themes for each program.** ** You can add or modify paths of the config files in adm.sh.**

Adding more programs

• To add more programs, add config files for that program to adm.sh.
• Use existing functions if theme switch can be done using linking config file to its dark or light variant.
• Otherwise, create new functions in functions.sh
• Call the function at the end of script with newly added program variable.

Example - Add iPython theme

Assuming you have pygments installed,

• Copy your ipython profile default theme (typically found in ~/.ipython/profile_default/ or ~/.ipython/profile_$USER/ directory) to a new file called light.py in the same directory.
• Change the following line to your preferred light theme (e.g. 'gruvbox-light')

c.TerminalInteractiveShell.highlighting_style = 'gruvbox-light'

• Do the same process for dark, i.e. create dark.py and change highlighting_style to a dark theme.
• In adm.sh, add the following at the end of config section:

IPYTHON_CONFIG=(~/.ipython/profile_default/{ipython_config.py,light.py,dark.py})

• Now based on system theme, light.py or dark.py can be linked to config.py. A symlink can be created using linkconfig function from functions.sh. Add the following line to the end of adm.sh:

linkconfig "${IPYTHON_CONFIG[@]}" soft

Available functions and variables

Functions

linkconfig

Creates symbolic link, or hardlink, or copy based on argument Based on WINTHEME, links to dark or light file. This function takes three arguments,

• argument 1 is the path where the config file must be put.
• argument 2 path of the light themed configuration file.
• argument 3 path of the dark themed configuration file.
• argument 4 soft | hard | copy
  • soft - Creates a soft (symbolic) link to the chosen theme as config file
  • hard - Creates a hard link to the chosen theme as config file
  • copy - Creates a copy of the chosen theme file and saves as config file

set_open_nvim_theme

Attempts to change the background of theme in running nvim instances. If socket files with matching pattern exist, sends remote commands to instance. In order for this to work, nvim must be started with a listen address. e.g. nvim --listen /tmp/nvim_1234.sock, for a stable solution an alias could be added in .zshrc:

alias nvim=nvim --listen /tmp/nvim_*.sock

gtktheme

Changes wslg theme based on WINTHEME Takes 1 argument:

• argument 1: Name of the theme (e.g. Adwaita)

Variables

WINTHEME

Possible values 0 or 1. 0 - Dark 1 - Light

When called without arguments, WINTHEME is set by checking windows registry value of AppsUseLightTheme. NOTE: Querying the registry takes ~2 seconds. When called with argument, WINTHEME is the value of the first argument. If provided argument is not 0 or 1, query windows registry to set WINTHEME.

MODE

Possible values light or dark.

MODE can be used in cases where light or dark must be provided to change theme.