How to use theme switcher in template file

hi i'm planing to do my personal portfolio, and that design i have a home page. with contain two div container. left side and right side. the left side is light version and the right side is dark version . so my question is how to use this theme switcher plugin to achieve that.. when visitor click the left side big button it will switch to the light version template and if client click the right side button it will load the dark color layout.so how can i use this plugin in my php template file..or any other solution that can achieve this please please please help me..