[SPYDER] Dark theme

0

If you can't wait for Spyder 4 - this is what does it for Spyder 3.3.2 in Windows, using Anaconda3.

1. Exit Spyder
2. Open command prompt or Anaconda prompt
3. Run pip install qdarkstyle and exit the prompt
4. Go to ...\Anaconda3\Lib\site-packages\spyder\utils and open qhelpers.py
5. Add import qdarkstyle to the top of that file
6. Replace the qapplication function definition with below code (only two added lines)
7. Save and close the file
8. Open Spyder and enjoy your dark theme

   def qapplication(translate=True, test_time=3):
       """
       Return QApplication instance
       Creates it if it doesn't already exist
   
       test_time: Time to maintain open the application when testing. It's given
       in seconds
       """
       if running_in_mac_app():
           SpyderApplication = MacApplication
       else:
           SpyderApplication = QApplication
   
       app = SpyderApplication.instance()
       if app is None:
           # Set Application name for Gnome 3
           # https://groups.google.com/forum/#!topic/pyside/24qxvwfrRDs
           app = SpyderApplication(['Spyder'])
           # Set application name for KDE (See issue 2207)
           app.setApplicationName('Spyder')
           app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
       if translate:
           install_translator(app)
   
       test_ci = os.environ.get('TEST_CI_WIDGETS', None)
       if test_ci is not None:
           timer_shutdown = QTimer(app)
           timer_shutdown.timeout.connect(app.quit)
           timer_shutdown.start(test_time*1000)
       return app

9. Go to Tools -> Preferences ->Syntax coloring
10. 
    Choose 'Zenburn' scheme
    
11. Click edit selected
12. 
    Change background color using screen color picker