Sublime plugin to toggle between light and dark themes

DayAndNight.py

import sublime
import sublime_plugin


class DayAndNightCommand(sublime_plugin.ApplicationCommand):
    def run(self):
        s = sublime.load_settings("Preferences.sublime-settings")
        if s.get("theme") == "Reverse Gravity.sublime-theme":
            print("Switching to dark theme")
            s.set("theme", "Gravity.sublime-theme")
            s.set("color_scheme", "Packages/User/SublimeLinter/SwapOff (SL).tmTheme")
        else:
            print("Switching to light theme")
            s.set("theme", "Reverse Gravity.sublime-theme")
            s.set("color_scheme", "Packages/User/Espresso Soda (Custom).tmTheme")
        sublime.save_settings("Preferences.sublime-settings")