Changed . token to _dot

This change allows the dotfiles to work with chezmoi (e.g: on windows)
and improves grepability with neovim/telescope

dot_config/nushell/nu_scripts/modules/base16/auto_base16.nu

@@ -0,0 +1,21 @@
+#!/usr/bin/env engine-q
+#
+# ~/.auto_base16.nu
+#
+# This is a wrapper around fehbg.nu that on top of setting a random wallpaper
+# also generates a base16 theme from it.
+#
+# This script is intended to run on desktop startup, e.g., by calling it in
+# ~/.xinitrc.
+#
+# Requirements:
+# 1. go, Python 3, fehbg.nu
+# 2. Install schemer2 from https://github.com/makuto/auto-base16-theme and put
+#    it into your PATH
+# 3. Expected environment variables:
+#   * WALLPAPER_IMG - The wallpaper used for generating the base16 scheme
+#   * BASE16_TXT - Target file to store the generated base16 scheme
+# 4. Both this script and fehbg.nu are expected to be in the home directory as
+#    '~/.auto_base16.nu' and '~/.fehbg.nu'.
+
+schemer2 -format img::colors -in $env.WALLPAPER_IMG -out $env.BASE16_TXT