sublime text 2 plugin for zooming to an original font size.

zoomzero.py

import sublime
import sublime_plugin

settings = sublime.load_settings('Preferences.sublime-settings')
orig_font_size = settings.get('base_font_size', settings.get('font_size'))
settings.set('base_font_size', orig_font_size)
sublime.save_settings('Preferences.sublime-settings')

class ZoomzeroCommand(sublime_plugin.WindowCommand):
    def run(self):
        settings.set('font_size', orig_font_size)
        sublime.save_settings('Preferences.sublime-settings')