If you're looking to Download Galaxy Pro on your Chromebook laptop Then read the following guideline.

Galaxy Pro - it is a clock, calendar and iCal task list with gorgeous rotating spiral galaxy in the background. Galaxy Pro is the one of the most amazing interactive 3D background for your Mac. You can completely customize it and make your own galaxy: change the perspective and angle by clicking on the galaxy, change galaxy’s speed and size in options. Enjoy the view and soothing space sound! Features: * Clock * Calendar * Next 3 tasks for today taken from iCal * 6 amazing skins * Soundtrack with ambient sounds of deep space * Beautiful large galaxy: 3D live wallpaper for your Mac. * Change the view perspective by clicking on the galaxy. * Make it your own, custom galaxy: change rotation speed, direction and angle. * Requires MacOS 10.7 or higher. Learn more: www.LifewareSolutions.com Demo Video: http://www.youtube.com/watch?v=m0LY2-1ECAY Your support would greatly help us make the application even better! If you like the app, please write us a good review on Mac app store. 
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