wezterm: Dynamically load colors from scheme file

terminal/.config/wezterm/wezterm.lua

@@ -6,6 +6,26 @@ local maps = require 'maps'
 require 'statusbar'.setup()
 require 'events'.setup()
 
+local function file_exists(name)
+    local f = io.open(name, "r")
+    if f ~= nil then
+        io.close(f)
+        return true
+    else
+        return false
+    end
+end
+
+-- automatically reload colors file
+local colorsfile = (os.getenv('XDG_STATE_HOME') or
+    (os.getenv('HOME') .. '/.local/state')) ..
+    '/wezterm/colors.toml'
+local colors = {}
+if file_exists(colorsfile) == true then
+    wezterm.add_to_config_reload_watch_list(colorsfile)
+    colors = wezterm.color.load_scheme(colorsfile)
+end
+
 -- wezterm.on("set-up-dotfile-workspace", function(window, pane)
 --     -- Set a workspace for coding on a current project
 --     -- Top pane is for the editor, bottom pane is for the build tool
@@ -58,20 +78,16 @@ require 'events'.setup()
 
 return {
     enable_wayland = true,
-
     hide_tab_bar_if_only_one_tab = true,
     use_fancy_tab_bar = false,
     tab_bar_at_bottom = true,
     window_padding = { left = 0, right = 0, top = 0, bottom = 0 },
-
-    color_scheme = "Railscasts (base16)",
-
+    colors = colors,
+    color_scheme = "Nord (base16)", -- will be overwritten by colors
     -- default_prog = {"nu"},
     scrollback_lines = 10000,
-
     font = wezterm.font('Iosevka Nerd Font'),
     line_height = 1.0,
-
     leader = { key = 'a', mods = 'CTRL', timeout_milliseconds = 1500 },
     keys = maps.keys,
     key_tables = maps.key_tables