Is it possible to achieve in Theme X templates the effect as on this website http://www.legworkstudio.com/ where while scrolling down one goes from webpage to webpage and background colours change with fade out/fade in effect? This is also achieved there by clicking on the web pages links.
Unfortunately, due to the nature of that script library, it may affect or conflict with theme’s scrolling functionality too. And we can’t provide customization related to that script library. Maybe still doable but you’ll need a developer to do this, the sample are mostly static contents/page so integration to Wordpress and the theme is required.