First off I apologize if this is a FAQ. I looked around and did not see this answered yet, plus I am fairly new to Wordpress in general. I have wordpress 4.7.3 installed and tried out the default Compass theme. I proceeded to customize it and like the way it is working out. So I purchased the Pro theme. My question is, do I have to install this as a new theme and do all my customization over again (Slider, logo, widgets, etc)? Or is there a way to upgrade the theme to save all my work?