To suspend using Redshift left click on the the tray icon that looks like a light bulb and check the :menuselection:`Suspended` checkbox. If redshift is suspended the tray icon will appear grayed out and will be a brighter white if Redshift is active. To read information about your settings for color temperature and your location left click on the light bulb tray icon and select :menuselection:`Show info`. To quite Redshift left click the tray icon and select :menuselection:`Quit`.
If you are using Lubuntu to make art or something that depends on how color appears on it it is recommended to suspend Redshift to not have the colors be shifted and appear different from what you see on your monitor.